diff --git a/cmake/define.inc b/cmake/define.inc
index 0bbc36878d512e0c1b66999300567fc9cd854cf1..9e3d4a0dfa05d1bdbc783da68d470c3a57f57d7b 100755
--- a/cmake/define.inc
+++ b/cmake/define.inc
@@ -291,7 +291,7 @@ MESSAGE(STATUS "CMAKE_CXX_COMPILER_ID: " ${CMAKE_CXX_COMPILER_ID})
 IF ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
   EXECUTE_PROCESS( COMMAND ${CMAKE_CXX_COMPILER} --version OUTPUT_VARIABLE clang_full_version_string )
   string (REGEX REPLACE ".*clang version ([0-9]+\\.[0-9]+).*" "\\1" CLANG_VERSION_STRING ${clang_full_version_string})
-  IF (CLANG_VERSION_STRING GREATER_EQUAL 13.1)
+  IF (CLANG_VERSION_STRING GREATER_EQUAL 13.0)
     SET(COMMON_FLAGS "${COMMON_FLAGS} -Wno-unused-but-set-variable")
   ENDIF ()
 ENDIF ()