diff --git a/.profile b/.profile
index 4d7bd14c..f4197181 100755
--- a/.profile
+++ b/.profile
@@ -40,7 +40,7 @@
 
 # Environment variables
 # First, what shell are we?
-_baseshell="$(basename "$0")"
+_baseshell="$(basename -- "$0")"
 
 # Use Vim if we have it
 export EDITOR="vi"