1 files changed, 1 insertions, 1 deletions

diff --git a/arch/um/include/user_util.h b/arch/um/include/user_util.h
index 992a7e1e0fca..615f2f0a32d0 100644
--- a/arch/um/include/user_util.h
+++ b/arch/um/include/user_util.h
@@ -31,7 +31,7 @@ extern unsigned long uml_physmem;
 extern unsigned long uml_reserved;
 extern unsigned long end_vm;
 extern unsigned long start_vm;
-extern unsigned long highmem;
+extern unsigned long long highmem;
 
 extern char host_info[];