diff --git a/Python/compile.c b/Python/compile.c
index 687b750..1286c3f 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -3338,7 +3338,7 @@ compiler_joined_str(struct compiler *c, expr_ty e)
     ADDOP_O(c, LOAD_CONST, empty_string, consts);
     ADDOP_NAME(c, LOAD_ATTR, join_string, names);
     VISIT_SEQ(c, expr, e->v.JoinedStr.values);
-    ADDOP_I(c, BUILD_LIST, asdl_seq_LEN(e->v.JoinedStr.values));
+    ADDOP_I(c, BUILD_TUPLE, asdl_seq_LEN(e->v.JoinedStr.values));
     ADDOP_I(c, CALL_FUNCTION, 1);
     return 1;
 }