diff --git a/test/any2ppm.c b/test/any2ppm.c
index 0149230c9..13275814b 100644
--- a/test/any2ppm.c
+++ b/test/any2ppm.c
@@ -239,6 +239,7 @@ write_ppm (cairo_surface_t *surface, int fd)
 
 static cairo_surface_t *
 _create_image (void *closure,
+	       cairo_content_t content,
 	       double width, double height)
 	       //csi_object_t *dictionary)
 {