diff --git a/core/jni/android/graphics/pdf/PdfDocument.cpp b/core/jni/android/graphics/pdf/PdfDocument.cpp
index 88e37e5545b50..d535193aa2802 100644
--- a/core/jni/android/graphics/pdf/PdfDocument.cpp
+++ b/core/jni/android/graphics/pdf/PdfDocument.cpp
@@ -88,7 +88,7 @@ public:
     }
 
     void write(SkWStream* stream) {
-        SkDocument* document = SkDocument::CreatePDF(stream);
+        SkAutoTUnref<SkDocument> document(SkDocument::CreatePDF(stream));
         for (unsigned i = 0; i < mPages.size(); i++) {
             PageRecord* page =  mPages[i];