diff --git a/processor/src/main/java/org/mapstruct/ap/model/source/ForgedMethod.java b/processor/src/main/java/org/mapstruct/ap/model/source/ForgedMethod.java
index 99afe85a9..90a21fc1e 100644
--- a/processor/src/main/java/org/mapstruct/ap/model/source/ForgedMethod.java
+++ b/processor/src/main/java/org/mapstruct/ap/model/source/ForgedMethod.java
@@ -141,4 +141,14 @@ public class ForgedMethod implements Method {
     public boolean overridesMethod() {
         return  false;
     }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder( returnType.toString() );
+        sb.append( " " );
+
+        sb.append( getName() ).append( "(" ).append( Strings.join( parameters, ", " ) ).append( ")" );
+
+        return sb.toString();
+    }
 }