fix uninitialized struct member #10152
diff --git a/Python/symtable.c b/Python/symtable.c
index 4a6c523..15ba6b5 100644
--- a/Python/symtable.c
+++ b/Python/symtable.c
@@ -66,6 +66,7 @@
     ste->ste_varkeywords = 0;
     ste->ste_opt_lineno = 0;
     ste->ste_opt_col_offset = 0;
+    ste->ste_tmpname = 0;
     ste->ste_lineno = lineno;
     ste->ste_col_offset = col_offset;