diff --git a/processor/src/main/java/org/mapstruct/ap/model/source/builtin/JaxbElemToValue.java b/processor/src/main/java/org/mapstruct/ap/model/source/builtin/JaxbElemToValue.java
index c4e69abbe..463b7a60f 100644
--- a/processor/src/main/java/org/mapstruct/ap/model/source/builtin/JaxbElemToValue.java
+++ b/processor/src/main/java/org/mapstruct/ap/model/source/builtin/JaxbElemToValue.java
@@ -41,7 +41,7 @@ public class JaxbElemToValue extends BuiltInMethod {
     public boolean doTypeVarsMatch(Type sourceType, Type targetType) {
         boolean match = false;
         if ( sourceType.getTypeParameters().size() == 1 ) {
-            match = sourceType.getTypeParameters().get( 0 ).equals( targetType );
+            match = sourceType.getTypeParameters().get( 0 ).isAssignableTo( targetType );
         }
         return match;
     }