diff --git a/processor/src/main/java/org/mapstruct/ap/internal/model/common/TypeFactory.java b/processor/src/main/java/org/mapstruct/ap/internal/model/common/TypeFactory.java
index e1a2e6e7c..db5674b21 100644
--- a/processor/src/main/java/org/mapstruct/ap/internal/model/common/TypeFactory.java
+++ b/processor/src/main/java/org/mapstruct/ap/internal/model/common/TypeFactory.java
@@ -36,7 +36,6 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
 import java.util.concurrent.ConcurrentNavigableMap;
 import java.util.concurrent.ConcurrentSkipListMap;
-
 import javax.lang.model.element.Element;
 import javax.lang.model.element.ElementKind;
 import javax.lang.model.element.ExecutableElement;
@@ -444,16 +443,17 @@ public class TypeFactory {
 
     private boolean isImported(String name, String qualifiedName) {
         String trimmedName = TypeFactory.trimSimpleClassName( name );
+        String trimmedQualifiedName = TypeFactory.trimSimpleClassName( qualifiedName );
         String importedType = importedQualifiedTypesBySimpleName.get( trimmedName );
 
         boolean imported = false;
         if ( importedType != null ) {
-            if ( importedType.equals( qualifiedName ) ) {
+            if ( importedType.equals( trimmedQualifiedName ) ) {
                 imported = true;
             }
         }
         else {
-            importedQualifiedTypesBySimpleName.put( trimmedName, qualifiedName );
+            importedQualifiedTypesBySimpleName.put( trimmedName, trimmedQualifiedName );
             imported = true;
         }
         return imported;
@@ -530,6 +530,19 @@ public class TypeFactory {
         return typeMirror;
     }
 
+    /**
+     * It strips the all the {@code []} from the {@code className}.
+     *
+     * E.g.
+     * <pre>
+     *     trimSimpleClassName("String[][][]") -> "String"
+     *     trimSimpleClassName("String[]") -> "String"
+     * </pre>
+     *
+     * @param className that needs to be trimmed
+     *
+     * @return the trimmed {@code className}, or {@code null} if the {@code className} was {@code null}
+     */
     static String trimSimpleClassName(String className) {
         if ( className == null ) {
             return null;
diff --git a/processor/src/test/java/org/mapstruct/ap/test/array/ArrayMappingTest.java b/processor/src/test/java/org/mapstruct/ap/test/array/ArrayMappingTest.java
index beedfbe2d..2a664ef9a 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/array/ArrayMappingTest.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/array/ArrayMappingTest.java
@@ -18,11 +18,10 @@
  */
 package org.mapstruct.ap.test.array;
 
-import static org.assertj.core.api.Assertions.assertThat;
-
 import java.util.Arrays;
 import java.util.List;
 
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mapstruct.ap.test.array._target.ScientistDto;
@@ -30,12 +29,22 @@ import org.mapstruct.ap.test.array.source.Scientist;
 import org.mapstruct.ap.testutil.IssueKey;
 import org.mapstruct.ap.testutil.WithClasses;
 import org.mapstruct.ap.testutil.runner.AnnotationProcessorTestRunner;
+import org.mapstruct.ap.testutil.runner.GeneratedSource;
+
+import static org.assertj.core.api.Assertions.assertThat;
 
 @WithClasses( { Scientist.class, ScientistDto.class, ScienceMapper.class } )
 @RunWith(AnnotationProcessorTestRunner.class)
 @IssueKey("108")
 public class ArrayMappingTest {
 
+    private final GeneratedSource generatedSource = new GeneratedSource();
+
+    @Rule
+    public GeneratedSource getGeneratedSource() {
+        return generatedSource;
+    }
+
     @Test
     public void shouldCopyArraysInBean() {
 
@@ -226,4 +235,9 @@ public class ArrayMappingTest {
         assertThat( existingTarget ).containsOnly( new long[] { 0L } );
     }
 
+    @Test
+    @IssueKey( "999" )
+    public void shouldNotContainFQNForStringArray() {
+        getGeneratedSource().forMapper( ScienceMapper.class ).content().doesNotContain( "java.lang.String[]" );
+    }
 }