diff --git a/programs/aes/CMakeLists.txt b/programs/aes/CMakeLists.txt
index 62a54c7..85bcd5f 100644
--- a/programs/aes/CMakeLists.txt
+++ b/programs/aes/CMakeLists.txt
@@ -5,6 +5,7 @@
 foreach(exe IN LISTS executables)
     add_executable(${exe} ${exe}.c $<TARGET_OBJECTS:mbedtls_test>)
     target_link_libraries(${exe} ${mbedcrypto_target})
+    target_include_directories(${exe} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/../../tests/include)
 endforeach()
 
 install(TARGETS ${executables}