1 files changed, 5 insertions, 0 deletions
diff --git a/test/cairo-test.c b/test/cairo-test.c
index 6f8cb7917..d93468bdb 100644
--- a/test/cairo-test.c
+++ b/test/cairo-test.c
@@ -1668,6 +1668,7 @@ cairo_test_create_surface_from_png (const cairo_test_context_t *ctx,
 {
     cairo_surface_t *image;
     cairo_status_t status;
+    char *unique_id;
 
     image = cairo_image_surface_create_from_png (filename);
     status = cairo_surface_status (image);
@@ -1683,6 +1684,10 @@ cairo_test_create_surface_from_png (const cairo_test_context_t *ctx,
 	    free (srcdir_filename);
 	}
     }
+    unique_id = strdup(filename);
+    cairo_surface_set_mime_data (image, CAIRO_MIME_TYPE_UNIQUE_ID,
+				 (unsigned char *)unique_id, strlen(unique_id),
+				 free, unique_id);
 
     return image;
 }