Index: Makefile
==================================================================
--- Makefile
+++ Makefile
@@ -64,11 +64,11 @@
 
 # mofiles/ducttape-lib.o : ducttape-lib.scm ducttape/*scm
 #	csc -I ducttape -J -c ducttape-lib.scm -o mofiles/ducttape-lib.o
 
 mofiles/%.o %.import.scm : %.scm
-	@[ -e mofiles ] && mkdir -p mofiles
+	@[ -e mofiles ] || mkdir -p mofiles
 	csc $(CSCOPTS) -I $* -J -c $< -o mofiles/$*.o
 	@touch $*.import.scm # ensure it is touched after the .o is made
 
 # a.import.o : a.import.scm a.o
 # csc -unit a.import -c a.import.scm -o $*.o