diff --git a/test/bug-431.c b/test/bug-431.c
index 663fe0c45..717b03b7f 100644
--- a/test/bug-431.c
+++ b/test/bug-431.c
@@ -53,6 +53,10 @@ draw (cairo_t *cr, int width, int height)
     cairo_mask(cr, mask_pattern);
     cairo_restore(cr);
 
+    cairo_surface_destroy (png_surface);
+    cairo_pattern_destroy (png_pattern);
+    cairo_pattern_destroy (mask_pattern);
+
     return CAIRO_TEST_SUCCESS;
 }