diff --git a/ghc/compiler/Makefile b/ghc/compiler/Makefile
index 229970ee6fa8247a4dc4b577bf3246dcf044408e..f69caa79d65f9529b8700d37edefd80c3bf05125 100644
--- a/ghc/compiler/Makefile
+++ b/ghc/compiler/Makefile
@@ -1,5 +1,5 @@
 # -----------------------------------------------------------------------------
-# $Id: Makefile,v 1.137 2001/02/12 10:15:19 simonmar Exp $
+# $Id: Makefile,v 1.138 2001/02/13 09:35:45 simonmar Exp $
 
 TOP = ..
 include $(TOP)/mk/boilerplate.mk
@@ -220,6 +220,9 @@ utils/Digraph_HC_OPTS		= -fglasgow-exts
 
 utils/PrimPacked_HC_OPTS	= -fvia-C -monly-3-regs -funfolding-interface-threshold7
 
+# ByteCodeItbls uses primops that the NCG doesn't support yet.
+ghci/ByteCodeItbls_HC_OPTS	= -fvia-C
+
 # ----------------------------------------------------------------------------
 #		C compilations