diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index fed2cc9..92208f4 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -10600,7 +10600,7 @@
     if (PyUnicode_READY(str) == -1)
         return NULL;
 
-    if (len > PY_SSIZE_T_MAX / PyUnicode_GET_LENGTH(str)) {
+    if (PyUnicode_GET_LENGTH(str) > PY_SSIZE_T_MAX / len) {
         PyErr_SetString(PyExc_OverflowError,
                         "repeated string is too long");
         return NULL;