diff --git a/mobile/android/tests/browser/robocop/helpers/WaitHelper.java b/mobile/android/tests/browser/robocop/helpers/WaitHelper.java
index 32eee8ed37ce..3d5ebc3689bf 100644
--- a/mobile/android/tests/browser/robocop/helpers/WaitHelper.java
+++ b/mobile/android/tests/browser/robocop/helpers/WaitHelper.java
@@ -128,7 +128,7 @@ public final class WaitHelper {
      * the invocation of storeState to the invocation of hasStateChanged. A boolean will be
      * returned from hasStateChanged, indicating this change of status.
      */
-    private static interface ChangeVerifier {
+    private interface ChangeVerifier {
         public String getLogTag();
 
         /**