diff --git a/tests/examples/compositor/crossfade.c b/tests/examples/compositor/crossfade.c
index ea2bb42ec2..44090ff556 100644
--- a/tests/examples/compositor/crossfade.c
+++ b/tests/examples/compositor/crossfade.c
@@ -37,7 +37,7 @@ typedef struct
   gboolean is_last;
 } VideoInfo;
 
-gchar *
+static gchar *
 ensure_uri (const gchar * location)
 {
   if (gst_uri_is_valid (location))