diff --git a/src/android/jar/src/org/qtproject/qt/android/BackendRegister.java b/src/android/jar/src/org/qtproject/qt/android/BackendRegister.java
index 590c7d84aac..1f448dfed8a 100644
--- a/src/android/jar/src/org/qtproject/qt/android/BackendRegister.java
+++ b/src/android/jar/src/org/qtproject/qt/android/BackendRegister.java
@@ -5,6 +5,6 @@ package org.qtproject.qt.android;
 class BackendRegister
 {
     static native boolean isNull();
-    static native void registerBackend(Class interfaceType, Object interfaceObject);
-    static native void unregisterBackend(Class interfaceType);
+    static native void registerBackend(Class<?> interfaceType, Object interfaceObject);
+    static native void unregisterBackend(Class<?> interfaceType);
 }