diff --git a/CMakeLists.txt b/CMakeLists.txt
index f5faba96..685e8fc7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,7 +14,11 @@ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wextra")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused-parameter")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wimplicit-fallthrough=0")
+if (CMAKE_COMPILER_IS_GNUCC)
+    if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 7.0)
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wimplicit-fallthrough=0")
+    endif()
+endif()
 
 list(INSERT CMAKE_MODULE_PATH 0
 	${CMAKE_CURRENT_SOURCE_DIR}/CMake