diff --git a/interfaces/innerkits/native/file_share/src/file_share.cpp b/interfaces/innerkits/native/file_share/src/file_share.cpp
index be352eafdb10ce85c32638be6247ad42cdabe2d6..8ca1ba61e5ba4b5874ba460e198381a5cf6881cd 100644
--- a/interfaces/innerkits/native/file_share/src/file_share.cpp
+++ b/interfaces/innerkits/native/file_share/src/file_share.cpp
@@ -116,6 +116,7 @@ static int32_t GetLowerPath(string &lowerPathHead, const string &lowerPathTail,
             return -EINVAL;
         }
         if (lowerPathHead.find(PID_FLAG) != string::npos) {
+            pid.erase(pid.size() - 1);
             lowerPathHead = lowerPathHead.replace(lowerPathHead.find(PID_FLAG),
                                                   PID_FLAG.length(), pid);
         }