1 files changed, 5 insertions, 0 deletions
diff --git a/src/tinyurl.h b/src/tinyurl.h
index 0df9865b..0f40a20d 100644
--- a/src/tinyurl.h
+++ b/src/tinyurl.h
@@ -20,7 +20,12 @@
  *
  */
 
+#ifndef TINYURL_H
+#define TINYURL_H
+
 #include <glib.h>
 
 gboolean tinyurl_valid(char *url);
 char * tinyurl_get(char *url);
+
+#endif