diff --git a/base/include/rm_session/rm_session.h b/base/include/rm_session/rm_session.h
index ef5c650e7..4af63c07c 100644
--- a/base/include/rm_session/rm_session.h
+++ b/base/include/rm_session/rm_session.h
@@ -129,7 +129,7 @@ namespace Genode {
 		virtual Local_addr attach(Dataspace_capability ds,
 		                          size_t size = 0, off_t offset = 0,
 		                          bool use_local_addr = false,
-		                          Local_addr local_addr = 0,
+		                          Local_addr local_addr = (void *)0,
 		                          bool executable = false) = 0;
 
 		/**