diff --git a/src/components/progress-bar/progress-bar.scss b/src/components/progress-bar/progress-bar.scss
index 31e73515..209c165a 100644
--- a/src/components/progress-bar/progress-bar.scss
+++ b/src/components/progress-bar/progress-bar.scss
@@ -11,7 +11,7 @@
 
 .progress-bar {
   position: relative;
-  background: var(--sl-color-gray-90);
+  background-color: var(--sl-color-gray-90);
   height: var(--height);
   border-radius: var(--sl-border-radius-pill);
   overflow: hidden;