diff --git a/modules/ui/src/app/app.component.html b/modules/ui/src/app/app.component.html
index c75fe1c4b..511a5a187 100644
--- a/modules/ui/src/app/app.component.html
+++ b/modules/ui/src/app/app.component.html
@@ -88,7 +88,7 @@ <h1 class="main-heading">Testrun</h1>
             aria-label="Certificates"
             matTooltip="Certificates"
             (click)="openCert()">
-            <mat-icon fontSet="material-symbols-outlined"
+            <mat-icon class="material-symbols-outlined filled"
               >workspace_premium</mat-icon
             >
           </button>
diff --git a/modules/ui/src/styles.scss b/modules/ui/src/styles.scss
index 19c475b1e..0240343a1 100644
--- a/modules/ui/src/styles.scss
+++ b/modules/ui/src/styles.scss
@@ -107,6 +107,14 @@ mat-hint {
   content: none;
 }
 
+.material-symbols-outlined.filled {
+  font-variation-settings:
+    'FILL' 1,
+    'wght' 400,
+    'GRAD' 0,
+    'opsz' 24;
+}
+
 .app-sidebar {
   .mat-mdc-button .mat-mdc-button-ripple {
     display: none;