diff --git a/tests/.gitignore b/tests/.gitignore
index fbbd0df..805287e 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -8,4 +8,4 @@
 data_files/ctr_drbg_seed
 data_files/entropy_seed
 
-/instrument_record_status.h
+include/test/instrument_record_status.h
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index bd5ed83..cc5a9c6 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -46,7 +46,7 @@
         DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/scripts/generate_test_code.py mbedtls ${CMAKE_CURRENT_SOURCE_DIR}/suites/helpers.function ${CMAKE_CURRENT_SOURCE_DIR}/suites/main_test.function ${CMAKE_CURRENT_SOURCE_DIR}/suites/host_test.function ${CMAKE_CURRENT_SOURCE_DIR}/suites/test_suite_${suite_name}.function ${CMAKE_CURRENT_SOURCE_DIR}/suites/test_suite_${data_name}.data
     )
 
-    include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+    include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)
     add_executable(test_suite_${data_name} test_suite_${data_name}.c)
     target_link_libraries(test_suite_${data_name} ${libs})
     if(${data_name} MATCHES ${SKIP_TEST_SUITES_REGEX})
diff --git a/tests/Makefile b/tests/Makefile
index e74bf95..e027e12 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -6,7 +6,7 @@
 WARNING_CFLAGS ?= -Wall -Wextra
 LDFLAGS ?=
 
-LOCAL_CFLAGS = $(WARNING_CFLAGS) -I../include -I../library -D_FILE_OFFSET_BITS=64
+LOCAL_CFLAGS = $(WARNING_CFLAGS) -I./include -I../include -I../library -D_FILE_OFFSET_BITS=64
 LOCAL_LDFLAGS = -L../library			\
 		-lmbedtls$(SHARED_SUFFIX)	\
 		-lmbedx509$(SHARED_SUFFIX)	\
@@ -110,9 +110,9 @@
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) $<	$(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
 
 # Some test suites require additional header files.
-$(filter test_suite_psa_crypto%, $(BINARIES)): psa_crypto_helpers.h
+$(filter test_suite_psa_crypto%, $(BINARIES)): include/test/psa_crypto_helpers.h
 $(addprefix embedded_,$(filter test_suite_psa_crypto%, $(APPS))): embedded_%: TESTS/mbedtls/%/psa_crypto_helpers.h
-$(filter test_suite_psa_%, $(BINARIES)): psa_helpers.h
+$(filter test_suite_psa_%, $(BINARIES)): include/test/psa_helpers.h
 $(addprefix embedded_,$(filter test_suite_psa_%, $(APPS))): embedded_%: TESTS/mbedtls/%/psa_helpers.h
 
 clean:
@@ -152,7 +152,7 @@
 generate-target-tests: $(EMBEDDED_TESTS)
 
 define copy_header_to_target
-TESTS/mbedtls/$(1)/$(2): $(2)
+TESTS/mbedtls/$(1)/$(2): include/test/$(2)
 	echo "  Copy ./$$@"
 ifndef WINDOWS
 	mkdir -p $$(@D)
@@ -163,11 +163,11 @@
 endif
 
 endef
-$(foreach app, $(APPS), $(foreach file, $(wildcard *.h), \
+$(foreach app, $(APPS), $(foreach file, $(notdir $(wildcard include/test/*.h)), \
 	$(eval $(call copy_header_to_target,$(app),$(file)))))
 
 ifdef RECORD_PSA_STATUS_COVERAGE_LOG
-$(BINARIES): instrument_record_status.h
-instrument_record_status.h: ../include/psa/crypto.h Makefile
+$(BINARIES): include/test/instrument_record_status.h
+include/test/instrument_record_status.h: ../include/psa/crypto.h Makefile
 	sed <../include/psa/crypto.h >$@ -n 's/^psa_status_t \([A-Za-z0-9_]*\)(.*/#define \1(...) RECORD_STATUS("\1", \1(__VA_ARGS__))/p'
 endif
diff --git a/tests/psa_crypto_helpers.h b/tests/include/test/psa_crypto_helpers.h
similarity index 98%
rename from tests/psa_crypto_helpers.h
rename to tests/include/test/psa_crypto_helpers.h
index 19303de..1dd6084 100644
--- a/tests/psa_crypto_helpers.h
+++ b/tests/include/test/psa_crypto_helpers.h
@@ -22,7 +22,7 @@
 #ifndef PSA_CRYPTO_HELPERS_H
 #define PSA_CRYPTO_HELPERS_H
 
-#include "psa_helpers.h"
+#include "test/psa_helpers.h"
 
 #include <psa/crypto.h>
 
diff --git a/tests/psa_helpers.h b/tests/include/test/psa_helpers.h
similarity index 100%
rename from tests/psa_helpers.h
rename to tests/include/test/psa_helpers.h
diff --git a/tests/suites/test_suite_cipher.function b/tests/suites/test_suite_cipher.function
index 8405f69..7834073 100644
--- a/tests/suites/test_suite_cipher.function
+++ b/tests/suites/test_suite_cipher.function
@@ -10,7 +10,7 @@
 #endif
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-#include "psa_crypto_helpers.h"
+#include "test/psa_crypto_helpers.h"
 #endif
 
 /* END_HEADER */
diff --git a/tests/suites/test_suite_pk.function b/tests/suites/test_suite_pk.function
index d88ca54..a67cb45 100644
--- a/tests/suites/test_suite_pk.function
+++ b/tests/suites/test_suite_pk.function
@@ -17,7 +17,7 @@
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 #include "mbedtls/psa_util.h"
-#include "psa_crypto_helpers.h"
+#include "test/psa_crypto_helpers.h"
 #define PSA_INIT( ) PSA_ASSERT( psa_crypto_init( ) )
 #else
 /* Define empty macros so that we can use them in the preamble and teardown
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index bc95f6f..ae4045c 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -9,7 +9,7 @@
  * uses mbedtls_ctr_drbg internally. */
 #include "mbedtls/ctr_drbg.h"
 
-#include "psa_crypto_helpers.h"
+#include "test/psa_crypto_helpers.h"
 
 /* Tests that require more than 128kB of RAM plus change have this symbol
  * as a dependency. Currently we always define this symbol, so the tests
diff --git a/tests/suites/test_suite_psa_crypto_entropy.function b/tests/suites/test_suite_psa_crypto_entropy.function
index 8538d6d..66c241e 100644
--- a/tests/suites/test_suite_psa_crypto_entropy.function
+++ b/tests/suites/test_suite_psa_crypto_entropy.function
@@ -4,7 +4,7 @@
 #include "mbedtls/entropy.h"
 #include "mbedtls/entropy_poll.h"
 
-#include "psa_crypto_helpers.h"
+#include "test/psa_crypto_helpers.h"
 #if defined(MBEDTLS_PSA_ITS_FILE_C)
 #include <stdio.h>
 #else
diff --git a/tests/suites/test_suite_psa_crypto_hash.function b/tests/suites/test_suite_psa_crypto_hash.function
index d50ff5a..6c577c0 100644
--- a/tests/suites/test_suite_psa_crypto_hash.function
+++ b/tests/suites/test_suite_psa_crypto_hash.function
@@ -2,7 +2,7 @@
 
 #include <stdint.h>
 
-#include "psa_crypto_helpers.h"
+#include "test/psa_crypto_helpers.h"
 
 /* END_HEADER */
 
diff --git a/tests/suites/test_suite_psa_crypto_init.function b/tests/suites/test_suite_psa_crypto_init.function
index 3283ac9..fd4ff21 100644
--- a/tests/suites/test_suite_psa_crypto_init.function
+++ b/tests/suites/test_suite_psa_crypto_init.function
@@ -1,7 +1,7 @@
 /* BEGIN_HEADER */
 #include <stdint.h>
 
-#include "psa_crypto_helpers.h"
+#include "test/psa_crypto_helpers.h"
 /* Some tests in this module configure entropy sources. */
 #include "psa_crypto_invasive.h"
 
diff --git a/tests/suites/test_suite_psa_crypto_persistent_key.function b/tests/suites/test_suite_psa_crypto_persistent_key.function
index e2d87ef..49ce964 100644
--- a/tests/suites/test_suite_psa_crypto_persistent_key.function
+++ b/tests/suites/test_suite_psa_crypto_persistent_key.function
@@ -9,7 +9,7 @@
 
 #include <stdint.h>
 
-#include "psa_crypto_helpers.h"
+#include "test/psa_crypto_helpers.h"
 #include "psa_crypto_storage.h"
 
 #include "mbedtls/md.h"
diff --git a/tests/suites/test_suite_psa_crypto_se_driver_hal.function b/tests/suites/test_suite_psa_crypto_se_driver_hal.function
index f95f7e5..9f44b88 100644
--- a/tests/suites/test_suite_psa_crypto_se_driver_hal.function
+++ b/tests/suites/test_suite_psa_crypto_se_driver_hal.function
@@ -1,5 +1,5 @@
 /* BEGIN_HEADER */
-#include "psa_crypto_helpers.h"
+#include "test/psa_crypto_helpers.h"
 #include "psa/crypto_se_driver.h"
 
 #include "psa_crypto_se.h"
diff --git a/tests/suites/test_suite_psa_crypto_se_driver_hal_mocks.function b/tests/suites/test_suite_psa_crypto_se_driver_hal_mocks.function
index f6acb07..ef50a68 100644
--- a/tests/suites/test_suite_psa_crypto_se_driver_hal_mocks.function
+++ b/tests/suites/test_suite_psa_crypto_se_driver_hal_mocks.function
@@ -1,5 +1,5 @@
 /* BEGIN_HEADER */
-#include "psa_crypto_helpers.h"
+#include "test/psa_crypto_helpers.h"
 #include "psa/crypto_se_driver.h"
 
 #include "psa_crypto_se.h"
diff --git a/tests/suites/test_suite_psa_crypto_slot_management.function b/tests/suites/test_suite_psa_crypto_slot_management.function
index 4c824f7..a9c7f04 100644
--- a/tests/suites/test_suite_psa_crypto_slot_management.function
+++ b/tests/suites/test_suite_psa_crypto_slot_management.function
@@ -1,7 +1,7 @@
 /* BEGIN_HEADER */
 #include <stdint.h>
 
-#include "psa_crypto_helpers.h"
+#include "test/psa_crypto_helpers.h"
 #include "psa_crypto_storage.h"
 
 typedef enum
diff --git a/tests/suites/test_suite_psa_its.function b/tests/suites/test_suite_psa_its.function
index 04a735a..b6cc488 100644
--- a/tests/suites/test_suite_psa_its.function
+++ b/tests/suites/test_suite_psa_its.function
@@ -7,7 +7,7 @@
 
 #include "../library/psa_crypto_its.h"
 
-#include "psa_helpers.h"
+#include "test/psa_helpers.h"
 
 /* Internal definitions of the implementation, copied for the sake of
  * some of the tests and of the cleanup code. */