diff --git a/src/main/java/juan/jimenez/SVC/miw/upm/es/C21.java b/src/main/java/juan/jimenez/SVC/miw/upm/es/C21.java
index 559c16c..b93afb1 100644
--- a/src/main/java/juan/jimenez/SVC/miw/upm/es/C21.java
+++ b/src/main/java/juan/jimenez/SVC/miw/upm/es/C21.java
@@ -10,4 +10,8 @@ public String m2() {
         return Thread.currentThread().getStackTrace()[1].getMethodName();
     }
 
+    public String m3() {
+        return Thread.currentThread().getStackTrace()[1].getMethodName();
+    }
+
 }
diff --git a/src/test/java/juan/jimenez/SVC/miw/upm/es/C21Test.java b/src/test/java/juan/jimenez/SVC/miw/upm/es/C21Test.java
index e90c953..9adbc88 100644
--- a/src/test/java/juan/jimenez/SVC/miw/upm/es/C21Test.java
+++ b/src/test/java/juan/jimenez/SVC/miw/upm/es/C21Test.java
@@ -20,4 +20,10 @@ public void testC21m2() {
         c21 = new C21();
         assertEquals("m2", c21.m2());
     }
+    
+    @Test
+    public void testC21m3() {
+        c21 = new C21();
+        assertEquals("m3", c21.m3());
+    }
 }