diff --git a/tools/build-gif89a.sh b/tools/build-gif89a.sh
index 486af93..c9604fd 100755
--- a/tools/build-gif89a.sh
+++ b/tools/build-gif89a.sh
@@ -18,8 +18,8 @@ echo "seq $SEQ -> $GIF" | tee -a WS/log
 convert						\
 	-delay 10 -dither none			\
 	-resize 40%				\
-	-colorspace gray -equalize		\
-	-colors 15				\
+	-colorspace gray -normalize		\
+	-colors 14				\
 	frames/$SEQ/?[012]*[369].png		\
 	$GIF