diff --git a/make_style.sh b/make_style.sh
index 8fc67119f..764298298 100755
--- a/make_style.sh
+++ b/make_style.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 cd "$(dirname "$0")" || exit
 
-node scripts/check-package-installed.js postcss sass || exit
+node scripts/check-package-installed.js postcss sass autoprefixer || exit
 
 build_style() {
   echo "Creating $1 style..."