diff --git a/tests/qapi-schema/qapi-schema-test.json b/tests/qapi-schema/qapi-schema-test.json
index ef17ab1aae..20f4cc0cfa 100644
--- a/tests/qapi-schema/qapi-schema-test.json
+++ b/tests/qapi-schema/qapi-schema-test.json
@@ -202,11 +202,10 @@
   'data': { '__org.qemu_x-member1': '__org.qemu_x-Enum' } }
 { 'struct': '__org.qemu_x-Struct', 'base': '__org.qemu_x-Base',
   'data': { '__org.qemu_x-member2': 'str', '*wchar-t': 'int' } }
-{ 'union': '__org.qemu_x-Union1', 'data': { '__org.qemu_x-branch': 'str' } }
 { 'alternate': '__org.qemu_x-Alt1', 'data': { '__org.qemu_x-branch': 'str' } }
 { 'struct': '__org.qemu_x-Struct2',
-  'data': { 'array': ['__org.qemu_x-Union1'] } }
-{ 'union': '__org.qemu_x-Union2', 'base': '__org.qemu_x-Base',
+  'data': { 'array': ['__org.qemu_x-Union'] } }
+{ 'union': '__org.qemu_x-Union', 'base': '__org.qemu_x-Base',
   'discriminator': '__org.qemu_x-member1',
   'data': { '__org.qemu_x-value': '__org.qemu_x-Struct2' } }
 { 'alternate': '__org.qemu_x-Alt',
@@ -214,8 +213,7 @@
 { 'event': '__ORG.QEMU_X-EVENT', 'data': '__org.qemu_x-Struct' }
 { 'command': '__org.qemu_x-command',
   'data': { 'a': ['__org.qemu_x-Enum'], 'b': ['__org.qemu_x-Struct'],
-            'c': '__org.qemu_x-Union2', 'd': '__org.qemu_x-Alt' },
-  'returns': '__org.qemu_x-Union1' }
+            'c': '__org.qemu_x-Union', 'd': '__org.qemu_x-Alt' } }
 
 # test 'if' condition handling
 
diff --git a/tests/qapi-schema/qapi-schema-test.out b/tests/qapi-schema/qapi-schema-test.out
index 07e4161331..9337adc9ea 100644
--- a/tests/qapi-schema/qapi-schema-test.out
+++ b/tests/qapi-schema/qapi-schema-test.out
@@ -215,21 +215,13 @@ object __org.qemu_x-Struct
     base __org.qemu_x-Base
     member __org.qemu_x-member2: str optional=False
     member wchar-t: int optional=True
-object q_obj_str-wrapper
-    member data: str optional=False
-enum __org.qemu_x-Union1Kind
-    member __org.qemu_x-branch
-object __org.qemu_x-Union1
-    member type: __org.qemu_x-Union1Kind optional=False
-    tag type
-    case __org.qemu_x-branch: q_obj_str-wrapper
 alternate __org.qemu_x-Alt1
     tag type
     case __org.qemu_x-branch: str
-array __org.qemu_x-Union1List __org.qemu_x-Union1
+array __org.qemu_x-UnionList __org.qemu_x-Union
 object __org.qemu_x-Struct2
-    member array: __org.qemu_x-Union1List optional=False
-object __org.qemu_x-Union2
+    member array: __org.qemu_x-UnionList optional=False
+object __org.qemu_x-Union
     base __org.qemu_x-Base
     tag __org.qemu_x-member1
     case __org.qemu_x-value: __org.qemu_x-Struct2
@@ -243,9 +235,9 @@ array __org.qemu_x-StructList __org.qemu_x-Struct
 object q_obj___org.qemu_x-command-arg
     member a: __org.qemu_x-EnumList optional=False
     member b: __org.qemu_x-StructList optional=False
-    member c: __org.qemu_x-Union2 optional=False
+    member c: __org.qemu_x-Union optional=False
     member d: __org.qemu_x-Alt optional=False
-command __org.qemu_x-command q_obj___org.qemu_x-command-arg -> __org.qemu_x-Union1
+command __org.qemu_x-command q_obj___org.qemu_x-command-arg -> None
     gen=True success_response=True boxed=False oob=False preconfig=False
 object TestIfStruct
     member foo: int optional=False
diff --git a/tests/unit/test-qmp-cmds.c b/tests/unit/test-qmp-cmds.c
index 83c9ef5b7c..faa858624a 100644
--- a/tests/unit/test-qmp-cmds.c
+++ b/tests/unit/test-qmp-cmds.c
@@ -127,22 +127,16 @@ void qmp_boxed_empty(Empty1 *arg, Error **errp)
 {
 }
 
-__org_qemu_x_Union1 *qmp___org_qemu_x_command(__org_qemu_x_EnumList *a,
-                                              __org_qemu_x_StructList *b,
-                                              __org_qemu_x_Union2 *c,
-                                              __org_qemu_x_Alt *d,
-                                              Error **errp)
+void qmp___org_qemu_x_command(__org_qemu_x_EnumList *a,
+                              __org_qemu_x_StructList *b,
+                              __org_qemu_x_Union *c,
+                              __org_qemu_x_Alt *d,
+                              Error **errp)
 {
-    __org_qemu_x_Union1 *ret = g_new0(__org_qemu_x_Union1, 1);
-
-    ret->type = ORG_QEMU_X_UNION1_KIND___ORG_QEMU_X_BRANCH;
-    ret->u.__org_qemu_x_branch.data = strdup("blah1");
-
     /* Also test that 'wchar-t' was munged to 'q_wchar_t' */
     if (b && b->value && !b->value->has_q_wchar_t) {
         b->value->q_wchar_t = 1;
     }
-    return ret;
 }