diff --git a/cmake/Findcodecov.cmake b/cmake/Findcodecov.cmake
index c20cf08..2883da6 100644
--- a/cmake/Findcodecov.cmake
+++ b/cmake/Findcodecov.cmake
@@ -112,6 +112,8 @@ foreach (LANG ${ENABLED_LANGUAGES})
 				endif ()
 			endif()
 
+			unset(CMAKE_REQUIRED_FLAGS)
+
 			if (COVERAGE_FLAG_DETECTED)
 				set(COVERAGE_${COMPILER}_FLAGS "${FLAG}"
 					CACHE STRING "${COMPILER} flags for code coverage.")