diff --git a/CMakeLists.txt b/CMakeLists.txt
index 18af55919..9601d627e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -206,7 +206,7 @@ else()
 endif()
 file(GLOB LIBBREAKPAD_COMMON_SOURCES src/common/*.cc src/common/*.c src/client/*.cc)
 list(APPEND LIBBREAKPAD_CLIENT_SOURCES ${LIBBREAKPAD_COMMON_SOURCES})
-list(FILTER LIBBREAKPAD_CLIENT_SOURCES EXCLUDE REGEX "/tests|/unittests|_unittest")
+list(FILTER LIBBREAKPAD_CLIENT_SOURCES EXCLUDE REGEX "/tests|/unittests|_test.cc$|_unittest.cc$")
 if(WIN32)
     list(FILTER LIBBREAKPAD_CLIENT_SOURCES EXCLUDE REGEX "language.cc|path_helper.cc|stabs_to_module.cc|stabs_reader.cc|minidump_file_writer.cc")
 endif()