diff --git a/Test/CMakeLists.txt b/Test/CMakeLists.txt
index 2e7052d..30e0751 100644
--- a/Test/CMakeLists.txt
+++ b/Test/CMakeLists.txt
@@ -3,6 +3,15 @@
 # the installed version
 
 
+# Remove compile flags for all optimized targets because they usually contain
+# -DNDEBUG flag which disable assert() macro
+set(CMAKE_C_FLAGS_MINSIZEREL "")
+set(CMAKE_C_FLAGS_RELEASE "")
+set(CMAKE_C_FLAGS_RELWITHDEBINFO "")
+set(CMAKE_CXX_FLAGS_MINSIZEREL "")
+set(CMAKE_CXX_FLAGS_RELEASE "")
+set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "")
+
 # List of single-file tests.
 set(TESTS
 	AllocatePair.m