diff --git a/src/osgDB/DatabasePager.cpp b/src/osgDB/DatabasePager.cpp
index b1c1d0554..24b83774a 100644
--- a/src/osgDB/DatabasePager.cpp
+++ b/src/osgDB/DatabasePager.cpp
@@ -197,6 +197,10 @@ void DatabasePager::run()
     
     while(true)
     {
+    
+        // test to see if we need to exit.
+        testCancel();
+    
         //
         // delete any children if required.
         //