diff --git a/src/tests/test-mu-common.c b/src/tests/test-mu-common.c
index d91d9722..4d546eff 100644
--- a/src/tests/test-mu-common.c
+++ b/src/tests/test-mu-common.c
@@ -17,7 +17,7 @@
 **  
 */
 
-#ifdef HAVE_CONFIG_H
+#if HAVE_CONFIG_H
 #include "config.h"
 #endif /*HAVE_CONFIG_H*/