diff --git a/ui-ngx/src/styles.scss b/ui-ngx/src/styles.scss
index e564a8c600..6e1d37efaa 100644
--- a/ui-ngx/src/styles.scss
+++ b/ui-ngx/src/styles.scss
@@ -846,6 +846,12 @@ mat-label {
   }
 
   .mat-mdc-icon-button {
+    &.tb-mat-20 {
+      @include tb-mat-icon-button-size(20);
+      .mat-icon {
+        @include tb-mat-icon-size(20);
+      }
+    }
     &.tb-mat-28 {
       @include tb-mat-icon-button-size(28);
     }