--- a/cs/config/Make.rules.cs
+++ b/cs/config/Make.rules.cs
@@ -75,7 +75,8 @@
 
 assembliesdir           = $(top_srcdir)/Assemblies
 
-install_bindir		    = $(prefix)/bin
+install_clibindir	= $(prefix)/bin
+install_bindir		= $(install_clibindir)
 
 ifeq ($(GACINSTALL),yes)
     ifeq ($(GAC_ROOT),)
