diff --git a/articles/simplify-path.md b/articles/simplify-path.md
index 75f4e016f..f57c573cb 100644
--- a/articles/simplify-path.md
+++ b/articles/simplify-path.md
@@ -30,18 +30,19 @@ A Unix-style path can contain special directory references: `.` means the curren
 class Solution:
     def simplifyPath(self, path: str) -> str:
         stack = []
-        cur = ""
+        cur = []
 
         for c in path + "/":
             if c == "/":
+                cur = "".join(cur)
                 if cur == "..":
                     if stack:
                         stack.pop()
                 elif cur != "" and cur != ".":
                     stack.append(cur)
-                cur = ""
+                cur = []
             else:
-                cur += c
+                cur.append(c)
 
         return "/" + "/".join(stack)
 ```