diff --git a/explode-emoji.sh b/explode-emoji.sh
index be84bc5..fe8d142 100755
--- a/explode-emoji.sh
+++ b/explode-emoji.sh
@@ -6,4 +6,4 @@ input_file_name="$(basename "${input_file_name_raw}")"
 # "file.blah" -> "file-explosion.gif"
 file_name_to_output="${input_file_name%.*}-explosion.gif"
 
-convert -dispose Previous "${input_file_name_raw}" -resize 128x128 -set page +0+0 -set delay 100 explosion.gif -loop 0 "${file_name_to_output}";
+convert -dispose Previous "${input_file_name_raw}" -resize 128x128 -background transparent -gravity center -extent 128x128 -set page +0+0 -set delay 100 explosion.gif -loop 0 "${file_name_to_output}";