diff --git a/make_pkg b/make_pkg
index 97174e9..10ba32a 100755
--- a/make_pkg
+++ b/make_pkg
@@ -1,12 +1,12 @@
 #!/bin/bash
 
 mkdir _callirhoe
-cp -R geom _callirhoe
-cp -R holidays _callirhoe
-cp -R lang _callirhoe
-cp -R layouts _callirhoe
-cp -R lib _callirhoe
-cp -R style _callirhoe
+cp -r geom _callirhoe
+cp -r holidays _callirhoe
+cp -r lang _callirhoe
+cp -r layouts _callirhoe
+cp -r lib _callirhoe
+cp -r style _callirhoe
 cp callirhoe.py _callirhoe/__main__.py
 
 cd _callirhoe
@@ -20,12 +20,12 @@ rm callirhoe.zip
 
 mkdir _calmagick
 
-cp -R geom _calmagick
-cp -R holidays _calmagick
-cp -R lang _calmagick
-cp -R layouts _calmagick
-cp -R lib _calmagick
-cp -R style _calmagick
+cp -r geom _calmagick
+cp -r holidays _calmagick
+cp -r lang _calmagick
+cp -r layouts _calmagick
+cp -r lib _calmagick
+cp -r style _calmagick
 cp callirhoe.py _calmagick
 cp calmagick.py _calmagick/__main__.py