diff --git a/core/common/src/test/java/org/onosproject/codec/impl/MockCodecContext.java b/core/common/src/test/java/org/onosproject/codec/impl/MockCodecContext.java
index 6a9b670..c3b6d82 100644
--- a/core/common/src/test/java/org/onosproject/codec/impl/MockCodecContext.java
+++ b/core/common/src/test/java/org/onosproject/codec/impl/MockCodecContext.java
@@ -30,7 +30,7 @@
 
     private final ObjectMapper mapper = new ObjectMapper();
     private final CodecManager manager = new CodecManager();
-    private final Map<Class<? extends Object>, Object> services = new HashMap<>();
+    private final Map<Class<?>, Object> services = new HashMap<>();
 
     /**
      * Constructs a new mock codec context.