diff --git a/src/if_ruby.c b/src/if_ruby.c
index 0f108a1..a45269d 100644
--- a/src/if_ruby.c
+++ b/src/if_ruby.c
@@ -11,13 +11,13 @@
  * See README.txt for an overview of the Vim source code.
  */
 
-#include <stdio.h>
-#include <string.h>
-
 #ifdef HAVE_CONFIG_H
 # include "auto/config.h"
 #endif
 
+#include <stdio.h>
+#include <string.h>
+
 #ifdef _WIN32
 # if !defined(DYNAMIC_RUBY_VER) || (DYNAMIC_RUBY_VER < 18)
 #   define NT