diff --git a/src/app/shared/components/navbar-mobile/navbar-mobile-dialog/navbar-mobile-dialog.component.html b/src/app/shared/components/navbar-mobile/navbar-mobile-dialog/navbar-mobile-dialog.component.html
index 7b8692bb..ffd1060c 100644
--- a/src/app/shared/components/navbar-mobile/navbar-mobile-dialog/navbar-mobile-dialog.component.html
+++ b/src/app/shared/components/navbar-mobile/navbar-mobile-dialog/navbar-mobile-dialog.component.html
@@ -78,7 +78,7 @@
         mat-button
         target="_blank"
         rel="noopener noreferrer"
-        matTooltip="Kollaborationsplattform"
+        (click)="close()"
         *featureFlag="'koPlaNavItem'"
       >
         <mat-icon>launch</mat-icon>
diff --git a/src/app/shared/components/navbar/navbar.component.html b/src/app/shared/components/navbar/navbar.component.html
index b8bdeffb..ba837b9b 100644
--- a/src/app/shared/components/navbar/navbar.component.html
+++ b/src/app/shared/components/navbar/navbar.component.html
@@ -57,7 +57,6 @@
       mat-button
       target="_blank"
       rel="noopener noreferrer"
-      matTooltip="Kollaborationsplattform"
       *featureFlag="'koPlaNavItem'"
     >
       <mat-icon>launch</mat-icon>