diff --git a/app/src/test/java/org/mozilla/fenix/tabstray/ext/FenixSnackbarKtTest.kt b/app/src/test/java/org/mozilla/fenix/tabstray/ext/FenixSnackbarKtTest.kt
index b2ad856d40..1b286e1f8b 100644
--- a/app/src/test/java/org/mozilla/fenix/tabstray/ext/FenixSnackbarKtTest.kt
+++ b/app/src/test/java/org/mozilla/fenix/tabstray/ext/FenixSnackbarKtTest.kt
@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 package org.mozilla.fenix.tabstray.ext
 
 import android.content.Context
@@ -74,7 +78,7 @@ class FenixSnackbarKtTest {
 
         every { snackbar.setAnchorView(anchor) }.answers { snackbar }
         every { snackbar.view }.answers { view }
-        every { snackbar.setAction(any(), any()) }.answers { mockk(relaxed = true) }
+        every { snackbar.setAction(any(), any()) }.answers { snackbar }
         every { snackbar.anchorView }.answers { anchor }
 
         snackbar.anchorWithAction(anchor, {})