diff --git a/plugins/junit/src/main/java/org/apache/struts2/StrutsJUnit4TestCase.java b/plugins/junit/src/main/java/org/apache/struts2/StrutsJUnit4TestCase.java
index 9a917e3cfd..3735685fc2 100644
--- a/plugins/junit/src/main/java/org/apache/struts2/StrutsJUnit4TestCase.java
+++ b/plugins/junit/src/main/java/org/apache/struts2/StrutsJUnit4TestCase.java
@@ -165,6 +165,8 @@ protected ActionProxy getActionProxy(String uri) {
         ServletActionContext.setRequest(request);
         ServletActionContext.setResponse(response);
 
+        ServletActionContext.getContext().put(ServletActionContext.ACTION_MAPPING, mapping);
+
         return proxy;
     }