diff --git a/RIGAL/rigsc.446/src/Makefile b/RIGAL/rigsc.446/src/Makefile
index 515c78c1c08a3def1e062fefa18bfcfa6d3ed739..1d590938e488307d74c387e81a839653281b221d 100644
--- a/RIGAL/rigsc.446/src/Makefile
+++ b/RIGAL/rigsc.446/src/Makefile
@@ -44,7 +44,7 @@ normal:   bins ../lib/riglib.a ../bin/anrig ../bin/genrigd ../bin/rig_lint test
 
 bins:     bin ../bin/rc ../bin/ic ../bin/v
 bin:
-	-mkdir --parents ../bin
+	-mkdir -p ../bin
 
 #rigal_scratch:#
 #	rm -rf ../rigal_scratch