diff --git a/packages/node-build-scripts/css-dist.sh b/packages/node-build-scripts/css-dist.sh
index 610dede643..49ae294943 100755
--- a/packages/node-build-scripts/css-dist.sh
+++ b/packages/node-build-scripts/css-dist.sh
@@ -5,4 +5,4 @@
 
 OUTPUT="${OUTPUT:-lib/css/}"
 
-postcss $OUTPUT/*.css --use autoprefixer --use postcss-discard-comments --replace
+postcss $OUTPUT/*.css --use autoprefixer --use postcss-discard-comments --replace --map