diff --git a/src/osgDB/ImagePager.cpp b/src/osgDB/ImagePager.cpp
index 26c6dc1af..97448f83f 100644
--- a/src/osgDB/ImagePager.cpp
+++ b/src/osgDB/ImagePager.cpp
@@ -35,6 +35,7 @@ ImagePager::ImageThread::~ImageThread()
 
 int ImagePager::ImageThread::cancel()
 {
+    return OpenThreads::Thread::cancel();
 }
 
 void ImagePager::ImageThread::run()