diff --git a/Makefile b/Makefile
index 8e0b683db8..f93f6410b3 100644
--- a/Makefile
+++ b/Makefile
@@ -47,6 +47,7 @@ CPU     = @target_cpu@
 
 default:
 	@cd lib;    $(MAKE)
+	@cd src/register;    $(MAKE)
 	@cd src;    $(MAKE)
 
 # link in motif libs statically