diff --git a/ext/gd/tests/bug43121.phpt b/ext/gd/tests/bug43121.phpt
index eecf7d31e21..ce2d1d6f6fc 100644
--- a/ext/gd/tests/bug43121.phpt
+++ b/ext/gd/tests/bug43121.phpt
@@ -9,7 +9,7 @@ Bug #43121 (gdImageFill with IMG_COLOR_TILED crashes httpd)
 $im = ImageCreate( 200, 100 );
 $black = ImageColorAllocate( $im, 0, 0, 0 );
 
-$im_tile = ImageCreateFromGif( "transback.gif" );
+$im_tile = ImageCreateFromGif(dirname(__FILE__) . "/bug43121.gif" );
 ImageSetTile( $im, $im_tile );
 ImageFill( $im, 0, 0, IMG_COLOR_TILED );