diff --git a/processor/src/main/java/org/mapstruct/ap/internal/model/source/TargetReference.java b/processor/src/main/java/org/mapstruct/ap/internal/model/source/TargetReference.java
index e1824529c..36306aa84 100644
--- a/processor/src/main/java/org/mapstruct/ap/internal/model/source/TargetReference.java
+++ b/processor/src/main/java/org/mapstruct/ap/internal/model/source/TargetReference.java
@@ -191,8 +191,9 @@ public class TargetReference {
             // last entry
             for ( int i = 0; i < entryNames.length; i++ ) {
 
-                Accessor targetReadAccessor = nextType.getPropertyReadAccessors().get( entryNames[i] );
-                Accessor targetWriteAccessor = nextType.getPropertyWriteAccessors( cms ).get( entryNames[i] );
+                Type mappingType = nextType.getMappingType();
+                Accessor targetReadAccessor = mappingType.getPropertyReadAccessors().get( entryNames[i] );
+                Accessor targetWriteAccessor = mappingType.getPropertyWriteAccessors( cms ).get( entryNames[i] );
                 boolean isLast = i == entryNames.length - 1;
                 boolean isNotLast = i < entryNames.length - 1;
                 if ( isWriteAccessorNotValidWhenNotLast( targetWriteAccessor, isNotLast )
@@ -236,13 +237,13 @@ public class TargetReference {
             if ( Executables.isGetterMethod( toUse ) ||
                 Executables.isFieldAccessor( toUse ) ) {
                 nextType = typeFactory.getReturnType(
-                    (DeclaredType) initial.getTypeMirror(),
+                    (DeclaredType) initial.getMappingType().getTypeMirror(),
                     toUse
                 );
             }
             else {
                 nextType = typeFactory.getSingleParameter(
-                    (DeclaredType) initial.getTypeMirror(),
+                    (DeclaredType) initial.getMappingType().getTypeMirror(),
                     toUse
                 ).getType();
             }
diff --git a/processor/src/test/java/org/mapstruct/ap/test/builder/nestedprop/BuilderNestedPropertyTest.java b/processor/src/test/java/org/mapstruct/ap/test/builder/nestedprop/BuilderNestedPropertyTest.java
index c673cb18d..d4117ccfa 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/builder/nestedprop/BuilderNestedPropertyTest.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/builder/nestedprop/BuilderNestedPropertyTest.java
@@ -18,7 +18,6 @@
  */
 package org.mapstruct.ap.test.builder.nestedprop;
 
-import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mapstruct.ap.testutil.WithClasses;
@@ -36,7 +35,6 @@ import static org.assertj.core.api.Assertions.assertThat;
     FlattenedMapper.class
 })
 @RunWith(AnnotationProcessorTestRunner.class)
-@Ignore("Nested target not working yet")
 public class BuilderNestedPropertyTest {
 
     @Test
@@ -47,5 +45,9 @@ public class BuilderNestedPropertyTest {
             33
         ) );
         assertThat( expandedTarget ).isNotNull();
+        assertThat( expandedTarget.getCount() ).isEqualTo( 33 );
+        assertThat( expandedTarget.getSecond() ).isNull();
+        assertThat( expandedTarget.getFirst() ).isNotNull();
+        assertThat( expandedTarget.getFirst().getFoo() ).isEqualTo( "33" );
     }
 }
diff --git a/processor/src/test/java/org/mapstruct/ap/test/builder/nestedprop/ExpandedTarget.java b/processor/src/test/java/org/mapstruct/ap/test/builder/nestedprop/ExpandedTarget.java
index 32be35007..d83d67f50 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/builder/nestedprop/ExpandedTarget.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/builder/nestedprop/ExpandedTarget.java
@@ -50,7 +50,7 @@ public class ExpandedTarget {
         private ImmutableTargetContainer first;
         private ImmutableTargetContainer second;
 
-        public Builder count(int age) {
+        public Builder count(int count) {
             this.count = count;
             return this;
         }