diff --git a/CMakeLists.txt b/CMakeLists.txt
index b5a945d..9971f75 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,9 +40,10 @@ if ((${CMAKE_CXX_COMPILER_ID} STREQUAL GNU) OR (${CMAKE_CXX_COMPILER_ID} STREQUA
     set(CMAKE_CXX_FLAGS "-flto ${CMAKE_CXX_FLAGS} -pipe -fstack-protector-strong -fstack-clash-protection -fexceptions")
     set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -ffunction-sections -fdata-sections -fmerge-all-constants -ftree-vectorize")
     include(CheckCXXCompilerFlag)
-    CHECK_CXX_COMPILER_FLAG("-fcf-protection" CF_PROTECTION_SUPPORTED)
+    set(CF_PROTECTION "-fcf-protection")
+    CHECK_CXX_COMPILER_FLAG("${CF_PROTECTION}" CF_PROTECTION_SUPPORTED)
     if (CF_PROTECTION_SUPPORTED)
-        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fcf-protection")
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CF_PROTECTION}")
     endif()
 endif()