diff --git a/processor/src/main/java/org/mapstruct/ap/model/DefaultMapperReference.java b/processor/src/main/java/org/mapstruct/ap/model/DefaultMapperReference.java
index 22fcad296..f7a3aebf3 100644
--- a/processor/src/main/java/org/mapstruct/ap/model/DefaultMapperReference.java
+++ b/processor/src/main/java/org/mapstruct/ap/model/DefaultMapperReference.java
@@ -37,10 +37,10 @@ public class DefaultMapperReference extends AbstractModelElement implements Mapp
     private final boolean isAnnotatedMapper;
     private final Set<Type> importTypes;
 
-    public DefaultMapperReference(Type type, TypeFactory typeFactory) {
+    public DefaultMapperReference(Type type, boolean isAnnotatedMapper, TypeFactory typeFactory) {
         this.type = type;
 
-        isAnnotatedMapper = type.isAnnotatedWith( "org.mapstruct.Mapper" );
+        this.isAnnotatedMapper = isAnnotatedMapper;
         importTypes = Collections.asSet( type );
 
         if ( isAnnotatedMapper() ) {
diff --git a/processor/src/main/java/org/mapstruct/ap/processor/MapperCreationProcessor.java b/processor/src/main/java/org/mapstruct/ap/processor/MapperCreationProcessor.java
index 8841eb0f9..c53aa944f 100644
--- a/processor/src/main/java/org/mapstruct/ap/processor/MapperCreationProcessor.java
+++ b/processor/src/main/java/org/mapstruct/ap/processor/MapperCreationProcessor.java
@@ -148,7 +148,13 @@ public class MapperCreationProcessor implements ModelElementProcessor<List<Metho
         MapperPrism mapperPrism = MapperPrism.getInstanceOn( element );
 
         for ( TypeMirror usedMapper : mapperPrism.uses() ) {
-            mapperReferences.add( new DefaultMapperReference( typeFactory.getType( usedMapper ), typeFactory ) );
+            mapperReferences.add(
+                new DefaultMapperReference(
+                    typeFactory.getType( usedMapper ),
+                    MapperPrism.getInstanceOn( typeUtils.asElement( usedMapper ) ) != null,
+                    typeFactory
+                )
+            );
         }
 
         return mapperReferences;