diff --git a/mach/proto/cg/regvar.c b/mach/proto/cg/regvar.c
index 6379b9bc2..502ba8fde 100644
--- a/mach/proto/cg/regvar.c
+++ b/mach/proto/cg/regvar.c
@@ -29,7 +29,7 @@
  *
  * Author: Hans van Staveren
  */
-
+extern string myalloc();
 struct regvar *rvlist;
 
 struct regvar *