diff --git a/Misc/NEWS b/Misc/NEWS
index f1a14101917..d62e695fa2c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -13,6 +13,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #20204: Added the __module__ attribute to _tkinter classes.
+
 - Issue #19980: Improved help() for non-recognized strings.  help('') now
   shows the help on str.  help('help') now shows the help on help().
   Original patch by Mark Lawrence.
diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c
index b23ee8a6651..52069ec8b9e 100644
--- a/Modules/_tkinter.c
+++ b/Modules/_tkinter.c
@@ -2409,7 +2409,7 @@ static PyType_Slot Tktt_Type_slots[] = {
 };
 
 static PyType_Spec Tktt_Type_spec = {
-    "tktimertoken",
+    "_tkinter.tktimertoken",
     sizeof(TkttObject),
     0,
     Py_TPFLAGS_DEFAULT,
@@ -2713,7 +2713,7 @@ static PyType_Slot Tkapp_Type_slots[] = {
 
 
 static PyType_Spec Tkapp_Type_spec = {
-    "tkapp",
+    "_tkinter.tkapp",
     sizeof(TkappObject),
     0,
     Py_TPFLAGS_DEFAULT,