diff --git a/test/unit/CMakeLists.txt b/test/unit/CMakeLists.txt
index a30f2d8ff108677ba4fb81e80b020f1e0bfc127b..2f3086c48baabf579def966612806704a94768a6 100644
--- a/test/unit/CMakeLists.txt
+++ b/test/unit/CMakeLists.txt
@@ -1,5 +1,5 @@
 add_compile_flags("C;CXX" "-Wno-unused")
-file(GLOB all_sources *.c *.m *.mm)
+file(GLOB all_sources *.c *.cc)
 set_source_files_compile_flags(${all_sources})
 
 include_directories(${PROJECT_SOURCE_DIR}/src)