1 files changed, 2 insertions, 0 deletions
diff --git a/src/png.c b/src/png.c
index 9aab2f8..4dea588 100644
--- a/src/png.c
+++ b/src/png.c
@@ -57,6 +57,8 @@ struct image *png_open(FILE *f){
 	p->img.bufwidth = png_get_image_width(p->png_ptr, p->info_ptr);
 	p->img.bufheight = png_get_image_height(p->png_ptr, p->info_ptr);
 
+  p->img.fmt = &libpng;
+
 	return (struct image *)p;
 }