diff --git a/lib/float/Makefile b/lib/float/Makefile
index f4e251c4b..0a4369d8a 100755
--- a/lib/float/Makefile
+++ b/lib/float/Makefile
@@ -1,6 +1,6 @@
 # Makefile for lib/float.
 
-CC1	= ./FP.compile
+CC1	= /bin/sh ./FP.compile
 
 LIBRARY	= ../libfp.a
 all:	$(LIBRARY)