diff --git a/process_event.c b/process_event.c
index e5ca870..91f64a1 100644
--- a/process_event.c
+++ b/process_event.c
@@ -1,3 +1,7 @@
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #define _GNU_SOURCE
 #include <stdio.h>
 #include <string.h>