diff --git a/Python/bytecodes.c b/Python/bytecodes.c
index 4cfbf138a2811f..35900073ea63c2 100644
--- a/Python/bytecodes.c
+++ b/Python/bytecodes.c
@@ -5032,7 +5032,7 @@ dummy_func(
             PyTypeObject *type = Py_TYPE(iterable);
             if (oparg == 0) {
                 // Sync case, similar to GET_ITER
-                if (type->tp_iter == NULL || !PySequence_Check(iterable)) {
+                if (type->tp_iter == NULL && !PySequence_Check(iterable)) {
                     PyErr_Format(PyExc_TypeError,
                         "'%.200s' object is not iterable",
                         type->tp_name);
diff --git a/Python/executor_cases.c.h b/Python/executor_cases.c.h
index 578a496c00581d..f8f8af2df72100 100644
--- a/Python/executor_cases.c.h
+++ b/Python/executor_cases.c.h
@@ -6002,7 +6002,7 @@
             PyTypeObject *type = Py_TYPE(iterable);
             if (oparg == 0) {
                 // Sync case, similar to GET_ITER
-                if (type->tp_iter == NULL || !PySequence_Check(iterable)) {
+                if (type->tp_iter == NULL && !PySequence_Check(iterable)) {
                     _PyFrame_SetStackPointer(frame, stack_pointer);
                     PyErr_Format(PyExc_TypeError,
                                  "'%.200s' object is not iterable",
diff --git a/Python/generated_cases.c.h b/Python/generated_cases.c.h
index f8967bbc8e334b..392b5da5082945 100644
--- a/Python/generated_cases.c.h
+++ b/Python/generated_cases.c.h
@@ -3170,7 +3170,7 @@
             PyTypeObject *type = Py_TYPE(iterable);
             if (oparg == 0) {
                 // Sync case, similar to GET_ITER
-                if (type->tp_iter == NULL || !PySequence_Check(iterable)) {
+                if (type->tp_iter == NULL && !PySequence_Check(iterable)) {
                     _PyFrame_SetStackPointer(frame, stack_pointer);
                     PyErr_Format(PyExc_TypeError,
                                  "'%.200s' object is not iterable",