diff --git a/include/qapi/visitor-impl.h b/include/qapi/visitor-impl.h
index 6d95b36..1d09b7b 100644
--- a/include/qapi/visitor-impl.h
+++ b/include/qapi/visitor-impl.h
@@ -33,7 +33,7 @@ struct Visitor
     void (*type_enum)(Visitor *v, int *obj, const char * const strings[],
                       const char *kind, const char *name, Error **errp);
     /* May be NULL; most useful for input visitors. */
-    void (*get_next_type)(Visitor *v, qtype_code *type,
+    void (*get_next_type)(Visitor *v, qtype_code *type, bool promote_int,
                           const char *name, Error **errp);

     void (*type_int)(Visitor *v, int64_t *obj, const char *name, Error **errp);
diff --git a/include/qapi/visitor.h b/include/qapi/visitor.h
index b765993..baea594 100644
--- a/include/qapi/visitor.h
+++ b/include/qapi/visitor.h
@@ -46,8 +46,9 @@ void visit_optional(Visitor *v, bool *present, const char *name,
  * Determine the qtype of the item @name in the current object visit.
  * For input visitors, set *@type to the correct qtype of a qapi
  * alternate type; for other visitors, leave *@type unchanged.
+ * If @promote_int, treat integers as QTYPE_FLOAT.
  */
-void visit_get_next_type(Visitor *v, qtype_code *type,
+void visit_get_next_type(Visitor *v, qtype_code *type, bool promote_int,
                          const char *name, Error **errp);
 void visit_type_enum(Visitor *v, int *obj, const char * const strings[],
                      const char *kind, const char *name, Error **errp);
diff --git a/qapi/qapi-visit-core.c b/qapi/qapi-visit-core.c
index 3f24daa..884fe94 100644
--- a/qapi/qapi-visit-core.c
+++ b/qapi/qapi-visit-core.c
@@ -81,11 +81,11 @@ void visit_optional(Visitor *v, bool *present, const char *name,
     }
 }

-void visit_get_next_type(Visitor *v, qtype_code *type,
+void visit_get_next_type(Visitor *v, qtype_code *type, bool promote_int,
                          const char *name, Error **errp)
 {
     if (v->get_next_type) {
-        v->get_next_type(v, type, name, errp);
+        v->get_next_type(v, type, promote_int, name, errp);
     }
 }

diff --git a/qapi/qmp-input-visitor.c b/qapi/qmp-input-visitor.c
index 803ffad..5310db5 100644
--- a/qapi/qmp-input-visitor.c
+++ b/qapi/qmp-input-visitor.c
@@ -209,6 +209,7 @@ static void qmp_input_end_list(Visitor *v, Error **errp)
 }

 static void qmp_input_get_next_type(Visitor *v, qtype_code *type,
+                                    bool promote_int,
                                     const char *name, Error **errp)
 {
     QmpInputVisitor *qiv = to_qiv(v);
@@ -219,6 +220,9 @@ static void qmp_input_get_next_type(Visitor *v, qtype_code *type,
         return;
     }
     *type = qobject_type(qobj);
+    if (promote_int && *type == QTYPE_QINT) {
+        *type = QTYPE_QFLOAT;
+    }
 }

 static void qmp_input_type_int(Visitor *v, int64_t *obj, const char *name,
diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index 17a82af..ed694a4 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -172,6 +172,11 @@ void visit_type_%(c_name)s(Visitor *v, %(c_name)s *obj, const char *name, Error


 def gen_visit_alternate(name, variants):
+    promote_int = 'true'
+    for var in variants.variants:
+        if var.type.alternate_qtype() == 'QTYPE_QINT':
+            promote_int = 'false'
+
     ret = mcgen('''

 void visit_type_%(c_name)s(Visitor *v, %(c_name)s **obj, const char *name, Error **errp)
@@ -182,13 +187,13 @@ void visit_type_%(c_name)s(Visitor *v, %(c_name)s **obj, const char *name, Error
     if (err) {
         goto out;
     }
-    visit_get_next_type(v, &(*obj)->type, name, &err);
+    visit_get_next_type(v, &(*obj)->type, %(promote_int)s, name, &err);
     if (err) {
         goto out_obj;
     }
     switch ((*obj)->type) {
 ''',
-                c_name=c_name(name))
+                c_name=c_name(name), promote_int=promote_int)

     for var in variants.variants:
         ret += mcgen('''
diff --git a/tests/test-qmp-input-visitor.c b/tests/test-qmp-input-visitor.c
index 7869a43..085ff3f 100644
--- a/tests/test-qmp-input-visitor.c
+++ b/tests/test-qmp-input-visitor.c
@@ -381,25 +381,17 @@ static void test_visitor_in_alternate_number(TestInputVisitorData *data,
     qapi_free_AltStrBool(asb);
     visitor_input_teardown(data, NULL);

-    /* FIXME: integer should parse as number */
     v = visitor_input_test_init(data, "42");
-    visit_type_AltStrNum(v, &asn, NULL, &err);
-    /* FIXME g_assert_cmpint(asn->type, ==, QTYPE_QFLOAT); */
-    /* FIXME g_assert_cmpfloat(asn->u.n, ==, 42); */
-    g_assert(err);
-    error_free(err);
-    err = NULL;
+    visit_type_AltStrNum(v, &asn, NULL, &error_abort);
+    g_assert_cmpint(asn->type, ==, QTYPE_QFLOAT);
+    g_assert_cmpfloat(asn->u.n, ==, 42);
     qapi_free_AltStrNum(asn);
     visitor_input_teardown(data, NULL);

-    /* FIXME: integer should parse as number */
     v = visitor_input_test_init(data, "42");
-    visit_type_AltNumStr(v, &ans, NULL, &err);
-    /* FIXME g_assert_cmpint(ans->type, ==, QTYPE_QFLOAT); */
-    /* FIXME g_assert_cmpfloat(ans->u.n, ==, 42); */
-    g_assert(err);
-    error_free(err);
-    err = NULL;
+    visit_type_AltNumStr(v, &ans, NULL, &error_abort);
+    g_assert_cmpint(ans->type, ==, QTYPE_QFLOAT);
+    g_assert_cmpfloat(ans->u.n, ==, 42);
     qapi_free_AltNumStr(ans);
     visitor_input_teardown(data, NULL);

