diff --git a/glib/tests/keyfile.c b/glib/tests/keyfile.c
index 8e428f4eb..a0a0aa706 100644
--- a/glib/tests/keyfile.c
+++ b/glib/tests/keyfile.c
@@ -1,5 +1,6 @@
 
 #include <glib.h>
+#include <glib/gstdio.h>
 #include <locale.h>
 #include <string.h>
 #include <stdlib.h>