diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 337bb81..2b6d305 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -46,9 +46,9 @@ else(CMAKE_C_COMPILER_ID MATCHES "GNU|Clang")
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wconversion")
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wextra")
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
-  if ((CMAKE_C_COMPILER_ID MATCHES "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_GREATER 4.2)
+  if ((CMAKE_C_COMPILER_ID MATCHES "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_GREATER 4.3)
     OR CMAKE_C_COMPILER_ID MATCHES "Clang")
+      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
       set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wpedantic")
   endif()
 endif()