diff --git a/NPTest.pm b/NPTest.pm
index b00a7086..3d6e3a28 100644
--- a/NPTest.pm
+++ b/NPTest.pm
@@ -438,7 +438,7 @@ sub LoadCache
 
     chomp($fileContents);
     my( $contentsRef ) = eval $fileContents;
-    %CACHE = %{$contentsRef};
+    %CACHE = %{$contentsRef} if (defined($contentsRef));
 
   }