diff --git a/dlls/ole32/compobj.c b/dlls/ole32/compobj.c
index dc31f416cab..d11fb24699e 100644
--- a/dlls/ole32/compobj.c
+++ b/dlls/ole32/compobj.c
@@ -5108,8 +5108,9 @@ HRESULT Handler_DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 HRESULT WINAPI CoGetApartmentType(APTTYPE *type, APTTYPEQUALIFIER *qualifier)
 {
     struct oletls *info = COM_CurrentInfo();
+    APARTMENT *apt;
 
-    FIXME("(%p, %p): semi-stub\n", type, qualifier);
+    TRACE("(%p, %p)\n", type, qualifier);
 
     if (!type || !qualifier)
         return E_INVALIDARG;
@@ -5128,6 +5129,13 @@ HRESULT WINAPI CoGetApartmentType(APTTYPE *type, APTTYPEQUALIFIER *qualifier)
 
     *qualifier = APTTYPEQUALIFIER_NONE;
 
+    if (!info->apt && (apt = apartment_find_mta()))
+    {
+        apartment_release(apt);
+        *type = APTTYPE_MTA;
+        *qualifier = APTTYPEQUALIFIER_IMPLICIT_MTA;
+    }
+
     return info->apt ? S_OK : CO_E_NOTINITIALIZED;
 }
 
diff --git a/dlls/ole32/tests/compobj.c b/dlls/ole32/tests/compobj.c
index ecfbac8625d..b9b7be0922d 100644
--- a/dlls/ole32/tests/compobj.c
+++ b/dlls/ole32/tests/compobj.c
@@ -602,9 +602,8 @@ static void test_StringFromGUID2(void)
   ok(len == 0, "len: %d (expected 0)\n", len);
 }
 
-#define test_apt_type(t, q, t_t, t_q) _test_apt_type(t, q, t_t, t_q, __LINE__)
-static void _test_apt_type(APTTYPE expected_type, APTTYPEQUALIFIER expected_qualifier, BOOL todo_type,
-        BOOL todo_qualifier, int line)
+#define test_apt_type(t, q) _test_apt_type(t, q, __LINE__)
+static void _test_apt_type(APTTYPE expected_type, APTTYPEQUALIFIER expected_qualifier, int line)
 {
     APTTYPEQUALIFIER qualifier = ~0u;
     APTTYPE type = ~0u;
@@ -615,9 +614,7 @@ static void _test_apt_type(APTTYPE expected_type, APTTYPEQUALIFIER expected_qual
 
     hr = pCoGetApartmentType(&type, &qualifier);
     ok_(__FILE__, line)(hr == S_OK || hr == CO_E_NOTINITIALIZED, "Unexpected return code: 0x%08x\n", hr);
-todo_wine_if(todo_type)
     ok_(__FILE__, line)(type == expected_type, "Wrong apartment type %d, expected %d\n", type, expected_type);
-todo_wine_if(todo_qualifier)
     ok_(__FILE__, line)(qualifier == expected_qualifier, "Wrong apartment qualifier %d, expected %d\n", qualifier,
         expected_qualifier);
 }
@@ -660,7 +657,7 @@ static void test_CoCreateInstance(void)
     hr = CoCreateInstance(rclsid, NULL, CLSCTX_INPROC_SERVER, &IID_IUnknown, (void **)&pUnk);
     ok(hr == CO_E_NOTINITIALIZED, "CoCreateInstance should have returned CO_E_NOTINITIALIZED instead of 0x%08x\n", hr);
 
-    test_apt_type(APTTYPE_CURRENT, APTTYPEQUALIFIER_NONE, FALSE, FALSE);
+    test_apt_type(APTTYPE_CURRENT, APTTYPEQUALIFIER_NONE);
 }
 
 static void test_CoGetClassObject(void)
@@ -682,7 +679,7 @@ static void test_CoGetClassObject(void)
        broken(hr == CO_E_NOTINITIALIZED), /* win9x */
        "CoGetClassObject should have returned E_INVALIDARG instead of 0x%08x\n", hr);
 
-    test_apt_type(APTTYPE_CURRENT, APTTYPEQUALIFIER_NONE, FALSE, FALSE);
+    test_apt_type(APTTYPE_CURRENT, APTTYPEQUALIFIER_NONE);
 
     if (!pRegOverridePredefKey)
     {
@@ -1797,7 +1794,7 @@ static void test_CoGetObjectContext(void)
 
     pCoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
 
-    test_apt_type(APTTYPE_MAINSTA, APTTYPEQUALIFIER_NONE, FALSE, FALSE);
+    test_apt_type(APTTYPE_MAINSTA, APTTYPEQUALIFIER_NONE);
 
     hr = pCoGetObjectContext(&IID_IComThreadingInfo, (void **)&pComThreadingInfo);
     ok_ole_success(hr, "CoGetObjectContext");
@@ -1993,11 +1990,11 @@ static void test_CoGetContextToken(void)
     ok(hr == CO_E_NOTINITIALIZED, "Expected CO_E_NOTINITIALIZED, got 0x%08x\n", hr);
     ok(token == 0xdeadbeef, "Expected 0, got 0x%lx\n", token);
 
-    test_apt_type(APTTYPE_CURRENT, APTTYPEQUALIFIER_NONE, FALSE, FALSE);
+    test_apt_type(APTTYPE_CURRENT, APTTYPEQUALIFIER_NONE);
 
     CoInitialize(NULL);
 
-    test_apt_type(APTTYPE_MAINSTA, APTTYPEQUALIFIER_NONE, FALSE, FALSE);
+    test_apt_type(APTTYPE_MAINSTA, APTTYPEQUALIFIER_NONE);
 
     hr = pCoGetContextToken(NULL);
     ok(hr == E_POINTER, "Expected E_POINTER, got 0x%08x\n", hr);
@@ -3705,7 +3702,7 @@ static DWORD CALLBACK implicit_mta_proc(void *param)
     CLSID clsid;
     HRESULT hr;
 
-    test_apt_type(APTTYPE_MTA, APTTYPEQUALIFIER_IMPLICIT_MTA, TRUE, TRUE);
+    test_apt_type(APTTYPE_MTA, APTTYPEQUALIFIER_IMPLICIT_MTA);
 
     hr = CoCreateInstance(&CLSID_InternetZoneManager, NULL, CLSCTX_INPROC_SERVER, &IID_IUnknown, (void **)&unk);
     ok_ole_success(hr, "CoCreateInstance");