diff --git a/realpath.sh b/realpath.sh
index d114d30..c356e23 100755
--- a/realpath.sh
+++ b/realpath.sh
@@ -27,13 +27,12 @@ while [ -n "$left" ]; do
 
   case "$seg" in
   .)
-    # /foo/a -> . will become /foo
-    result="${result%/*}"
+    # Just ignore this segment
     continue
     ;;
   ..)
-    # /foo/bar/a -> .. will become /foo
-    result="${result%/*/*}"
+    # Eat a segment off result
+    result="${result%/*}"
     continue
     ;;
   esac