diff --git a/src/gausskernel/storage/file/fd.cpp b/src/gausskernel/storage/file/fd.cpp
index f99bae1bc..381ecf5f3 100644
--- a/src/gausskernel/storage/file/fd.cpp
+++ b/src/gausskernel/storage/file/fd.cpp
@@ -3512,13 +3512,16 @@ void RemovePgTempFiles(void)
          * subDir returned by ReadDir will be overwritten by the next invoking.
          * therefore, the result needs to be saved.
          */
+        char curSubDir[MAXPGPATH] = {0};
+        rc = strncpy_s(curSubDir, MAXPGPATH, spc_de->d_name, strlen(spc_de->d_name));
+        securec_check(rc, "", "");
 #ifdef PGXC
         /* Postgres-XC tablespaces include node name in path */
         rc = snprintf_s(temp_path,
                         sizeof(temp_path),
                         sizeof(temp_path) - 1,
                         "pg_tblspc/%s/%s_%s/%s",
-                        spc_de->d_name,
+                        curSubDir,
                         TABLESPACE_VERSION_DIRECTORY,
                         g_instance.attr.attr_common.PGXCNodeName,
                         PG_TEMP_FILES_DIR);
@@ -3528,7 +3531,7 @@ void RemovePgTempFiles(void)
                         sizeof(temp_path),
                         sizeof(temp_path) - 1,
                         "pg_tblspc/%s/%s/%s",
-                        spc_de->d_name,
+                        curSubDir,
                         TABLESPACE_VERSION_DIRECTORY,
                         PG_TEMP_FILES_DIR);
         securec_check_ss(rc, "", "");
@@ -3541,7 +3544,7 @@ void RemovePgTempFiles(void)
                         sizeof(temp_path),
                         sizeof(temp_path) - 1,
                         "pg_tblspc/%s/%s_%s",
-                        spc_de->d_name,
+                        curSubDir,
                         TABLESPACE_VERSION_DIRECTORY,
                         g_instance.attr.attr_common.PGXCNodeName);
         securec_check_ss(rc, "", "");
@@ -3550,7 +3553,7 @@ void RemovePgTempFiles(void)
                         sizeof(temp_path),
                         sizeof(temp_path) - 1,
                         "pg_tblspc/%s/%s",
-                        spc_de->d_name,
+                        curSubDir,
                         TABLESPACE_VERSION_DIRECTORY);
         securec_check_ss(rc, "\0", "\0");
 #endif
@@ -4055,4 +4058,4 @@ PageCompressHeader *GetPageCompressMemoryMap(File file, uint32 chunk_size)
     }
 
     return vfdP->pcmap;
-}
\ No newline at end of file
+}