diff --git a/defines.h b/defines.h
index 6037aee..f518492 100644
--- a/defines.h
+++ b/defines.h
@@ -67,12 +67,12 @@
 # if defined(_MSC_VER)
 #  undef EV_CC_MSVC
 #  define EV_CC_MSVC 1
-# elif defined(__GNUC__)
-#  undef EV_CC_GCC
-#  define EV_CC_GCC 1
 # elif defined(__clang)
 #  undef EV_CC_CLANG
 #  define EV_CC_CLANG 1
+# elif defined(__GNUC__)
+#  undef EV_CC_GCC
+#  define EV_CC_GCC 1
 # else
 #  error EV_CC_UNKNOWN
 # endif