1 files changed, 3 insertions, 3 deletions
diff --git a/README.md b/README.md
index 279aa98..52133b5 100644
--- a/README.md
+++ b/README.md
@@ -486,11 +486,11 @@ Alternative to the `dirname` command.
 dirname() {
     # Usage: dirname "path"
     dir=${1%%/}
+    dir=${dir%/*}
 
-    [ "$dir" ] || dir=//
-    [ "${dir##*/*}" ] && dir=.
+    [ "${1##*/*}" ] && dir=.
 
-    printf '%s\n' "${dir%/*}"
+    printf '%s\n' "${dir:-/}"
 }
 ```