diff --git a/Source/cmComputeLinkDepends.h b/Source/cmComputeLinkDepends.h
index cf227fb6bf..9776f55d54 100644
--- a/Source/cmComputeLinkDepends.h
+++ b/Source/cmComputeLinkDepends.h
@@ -63,7 +63,7 @@ private:
   cmTarget const* HeadTarget;
   cmMakefile* Makefile;
   cmLocalGenerator* LocalGenerator;
-  cmGlobalGenerator* GlobalGenerator;
+  cmGlobalGenerator const* GlobalGenerator;
   cmake* CMakeInstance;
   bool DebugMode;