diff --git a/Modules/_testcapimodule.c b/Modules/_testcapimodule.c
index 8087b444939f5a..1a3cbe0b212aa6 100644
--- a/Modules/_testcapimodule.c
+++ b/Modules/_testcapimodule.c
@@ -2959,7 +2959,7 @@ test_PyDateTime_GET(PyObject *self, PyObject *obj)
     month = PyDateTime_GET_MONTH(obj);
     day = PyDateTime_GET_DAY(obj);
 
-    return Py_BuildValue("(lll)", year, month, day);
+    return Py_BuildValue("(iii)", year, month, day);
 }
 
 static PyObject *
@@ -2973,7 +2973,7 @@ test_PyDateTime_DATE_GET(PyObject *self, PyObject *obj)
     microsecond = PyDateTime_DATE_GET_MICROSECOND(obj);
     PyObject *tzinfo = PyDateTime_DATE_GET_TZINFO(obj);
 
-    return Py_BuildValue("(llllO)", hour, minute, second, microsecond, tzinfo);
+    return Py_BuildValue("(iiiiO)", hour, minute, second, microsecond, tzinfo);
 }
 
 static PyObject *
@@ -2987,7 +2987,7 @@ test_PyDateTime_TIME_GET(PyObject *self, PyObject *obj)
     microsecond = PyDateTime_TIME_GET_MICROSECOND(obj);
     PyObject *tzinfo = PyDateTime_TIME_GET_TZINFO(obj);
 
-    return Py_BuildValue("(llllO)", hour, minute, second, microsecond, tzinfo);
+    return Py_BuildValue("(iiiiO)", hour, minute, second, microsecond, tzinfo);
 }
 
 static PyObject *
@@ -2999,7 +2999,7 @@ test_PyDateTime_DELTA_GET(PyObject *self, PyObject *obj)
     seconds = PyDateTime_DELTA_GET_SECONDS(obj);
     microseconds = PyDateTime_DELTA_GET_MICROSECONDS(obj);
 
-    return Py_BuildValue("(lll)", days, seconds, microseconds);
+    return Py_BuildValue("(iii)", days, seconds, microseconds);
 }
 
 /* test_thread_state spawns a thread of its own, and that thread releases