diff --git a/res/css/views/messages/_CallEvent.scss b/res/css/views/messages/_CallEvent.scss
index fec5114a1c..54c7df3e0b 100644
--- a/res/css/views/messages/_CallEvent.scss
+++ b/res/css/views/messages/_CallEvent.scss
@@ -136,7 +136,7 @@ limitations under the License.
 
                 height: 16px;
                 width: 16px;
-                background-color: $icon-button-color;
+                background-color: $tertiary-fg-color;
                 mask-repeat: no-repeat;
                 mask-size: contain;
                 mask-position: center;