diff --git a/sql/sql_show.cc b/sql/sql_show.cc
index 83f64e2c9c9..4c9b24c83d8 100644
--- a/sql/sql_show.cc
+++ b/sql/sql_show.cc
@@ -438,6 +438,7 @@ mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
   uint col_access=thd->col_access;
 #endif
   TABLE_LIST table_list;
+  char tbbuff[FN_REFLEN];
   DBUG_ENTER("mysql_find_files");
 
   if (wild && !wild[0])
@@ -454,6 +455,8 @@ mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
     DBUG_RETURN(-1);
   }
 
+  VOID(tablename_to_filename(tmp_file_prefix, tbbuff, sizeof(tbbuff)));
+
   for (i=0 ; i < (uint) dirp->number_off_files  ; i++)
   {
     char uname[NAME_LEN*3+1];                   /* Unencoded name */
@@ -491,7 +494,7 @@ mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
     {
         // Return only .frm files which aren't temp files.
       if (my_strcasecmp(system_charset_info, ext=fn_rext(file->name),reg_ext) ||
-          is_prefix(file->name,tmp_file_prefix))
+          is_prefix(file->name,tbbuff))
         continue;
       *ext=0;
       VOID(filename_to_tablename(file->name, uname, sizeof(uname)));