diff --git a/libvalkey/adapters/glib.h b/libvalkey/adapters/glib.h
index 6e58e0cc..c3a99f28 100644
--- a/libvalkey/adapters/glib.h
+++ b/libvalkey/adapters/glib.h
@@ -1,4 +1,4 @@
-#ifndef VALKEY_GLIB_H__
+#ifndef VALKEY_GLIB_H
 #define VALKEY_GLIB_H__
 
 #include <glib.h>