diff --git a/samples/Sample_20_ExternalSlide.php b/samples/Sample_20_ExternalSlide.php
new file mode 100644
index 000000000..316855be1
--- /dev/null
+++ b/samples/Sample_20_ExternalSlide.php
@@ -0,0 +1,23 @@
+<?php
+include_once 'Sample_Header.php';
+
+use PhpOffice\PhpPresentation\PhpPresentation;
+use PhpOffice\PhpPresentation\Shape\RichText;
+
+// Create new PHPPresentation object
+echo date('H:i:s') . ' Create new PHPPresentation object' . EOL;
+$objPHPPresentation = new PhpPresentation();
+$objPHPPresentation->removeSlideByIndex(0);
+
+$oReader = \PhpOffice\PhpPresentation\IOFactory::createReader('PowerPoint2007');
+$oPresentation04 = $oReader->load(__DIR__ . '/results/Sample_04_Table.pptx');
+
+foreach ($oPresentation04->getAllSlides() as $oSlide) {
+    $objPHPPresentation->addExternalSlide($oSlide);
+}
+
+// Save file
+echo write($objPHPPresentation, basename(__FILE__, '.php'), $writers);
+if (!CLI) {
+    include_once 'Sample_Footer.php';
+}
\ No newline at end of file
diff --git a/src/PhpPresentation/PhpPresentation.php b/src/PhpPresentation/PhpPresentation.php
index 0753924d7..580334289 100644
--- a/src/PhpPresentation/PhpPresentation.php
+++ b/src/PhpPresentation/PhpPresentation.php
@@ -324,6 +324,8 @@ public function addExternalSlide(Slide $slide)
     {
         $slide->rebindParent($this);
 
+        $this->addMasterSlide($slide->getSlideLayout()->getSlideMaster());
+
         return $this->addSlide($slide);
     }
 
@@ -353,8 +355,8 @@ public function createMasterSlide()
      * Add masterslide
      *
      * @param  \PhpOffice\PhpPresentation\Slide\SlideMaster $slide
+     * @return \PhpOffice\PhpPresentation\Slide\SlideMaster
      * @throws \Exception
-     * @retun \PhpOffice\PhpPresentation\Slide\SlideMaster
      */
     public function addMasterSlide(SlideMaster $slide = null)
     {
diff --git a/src/PhpPresentation/Slide/SlideLayout.php b/src/PhpPresentation/Slide/SlideLayout.php
index 0b11b9695..72f42b8e5 100644
--- a/src/PhpPresentation/Slide/SlideLayout.php
+++ b/src/PhpPresentation/Slide/SlideLayout.php
@@ -88,4 +88,12 @@ public function setLayoutName($layoutName)
         $this->layoutName = $layoutName;
         return $this;
     }
+
+    /**
+     * @return SlideMaster
+     */
+    public function getSlideMaster()
+    {
+        return $this->slideMaster;
+    }
 }
diff --git a/tests/PhpPresentation/Tests/Slide/SlideLayoutTest.php b/tests/PhpPresentation/Tests/Slide/SlideLayoutTest.php
index eab73ea48..aa01d46ff 100644
--- a/tests/PhpPresentation/Tests/Slide/SlideLayoutTest.php
+++ b/tests/PhpPresentation/Tests/Slide/SlideLayoutTest.php
@@ -50,4 +50,14 @@ public function testLayoutName()
         $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Slide\\SlideLayout', $object->setLayoutName($expectedLayoutName));
         $this->assertEquals($expectedLayoutName, $object->getLayoutName());
     }
+
+    public function testSlideMaster()
+    {
+        // Mocks
+        $mockSlideMaster = $this->getMockForAbstractClass('PhpOffice\PhpPresentation\Slide\SlideMaster');
+
+        $object = new SlideLayout($mockSlideMaster);
+
+        $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Slide\\SlideMaster', $object->getSlideMaster());
+    }
 }