diff --git a/Ports/gltron/package.sh b/Ports/gltron/package.sh
index fd357737b8..332115b14d 100755
--- a/Ports/gltron/package.sh
+++ b/Ports/gltron/package.sh
@@ -4,7 +4,7 @@ useconfigure="true"
 version="0.70"
 files="http://mirror.sobukus.de/files/grimoire/games-arcade-2d/gltron-${version}-source.tar.gz gltron-${version}-source.tar.gz e0c8ebb41a18a1f8d7302a9c2cb466f5b1dd63e9a9966c769075e6b6bdad8bb0"
 auth_type=sha256
-depends=("SDL_sound" "SDL2")
+depends=("libpng" "SDL_sound" "SDL2" "zlib")
 configopts=(
     "--disable-warn"
 )