diff --git a/src/cvtDctsdr/Makefile.Unix b/src/cvtDctsdr/Makefile.Unix
index e574d11d0..45f30c67c 100644
--- a/src/cvtDctsdr/Makefile.Unix
+++ b/src/cvtDctsdr/Makefile.Unix
@@ -49,5 +49,5 @@ sf2db: sf2dbYacc.o
 sf2dbYacc.o: sf2dbLex.c
 
 clean::
-	/bin/rm -f sf2dbYacc.c sf2dbLex.c
+	$(RM) -f sf2dbYacc.c sf2dbLex.c