diff --git a/Include/cpython/funcobject.h b/Include/cpython/funcobject.h
index 23c8009c38d..a6cec5f31cf 100644
--- a/Include/cpython/funcobject.h
+++ b/Include/cpython/funcobject.h
@@ -139,7 +139,8 @@ PyAPI_FUNC(PyObject *) PyStaticMethod_New(PyObject *);
     V(DESTROY)                   \
     V(MODIFY_CODE)               \
     V(MODIFY_DEFAULTS)           \
-    V(MODIFY_KWDEFAULTS)
+    V(MODIFY_KWDEFAULTS)         \
+    V(MODIFY_QUALNAME)    
 
 typedef enum {
     #define PY_DEF_EVENT(EVENT) PyFunction_EVENT_##EVENT,
diff --git a/Objects/funcobject.c b/Objects/funcobject.c
index 0efcddf4319..4c7c42eb1ce 100644
--- a/Objects/funcobject.c
+++ b/Objects/funcobject.c
@@ -541,6 +541,8 @@ func_set_qualname(PyFunctionObject *op, PyObject *value, void *Py_UNUSED(ignored
                         "__qualname__ must be set to a string object");
         return -1;
     }
+    handle_func_event(PyFunction_EVENT_MODIFY_QUALNAME,
+                      (PyFunctionObject *)op, value);
     Py_XSETREF(op->func_qualname, Py_NewRef(value));
     return 0;
 }