diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 06df85d..e9cae9a 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -138,8 +138,10 @@
 add_test_suite(shax)
 add_test_suite(timing)
 add_test_suite(rsa)
-add_test_suite(version)
 add_test_suite(xtea)
+if (NOT USE_CRYPTO_SUBMODULE)
+    add_test_suite(version)
+endif()
 
 # Make scripts and data files needed for testing available in an
 # out-of-source build.
diff --git a/tests/Makefile b/tests/Makefile
index 50a0549..8db7920 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -59,6 +59,15 @@
 # constructed by stripping path 'suites/' and extension .data.
 APPS = $(basename $(subst suites/,,$(wildcard suites/test_suite_*.data)))
 
+# When this project is used as a submodule, exclude the following list of
+# tests, which will be run from the parent module instead.
+ifdef USE_CRYPTO_SUBMODULE
+APPS := $(filter-out \
+               test_suite_version \
+               ,$(APPS))
+endif
+
+
 # Construct executable name by adding OS specific suffix $(EXEXT).
 BINARIES := $(addsuffix $(EXEXT),$(APPS))