diff --git a/dlls/imm32/tests/imm32.c b/dlls/imm32/tests/imm32.c
index 1ed8ba1f000..75b5cde6c7b 100644
--- a/dlls/imm32/tests/imm32.c
+++ b/dlls/imm32/tests/imm32.c
@@ -1412,24 +1412,29 @@ static DWORD WINAPI test_default_ime_with_message_only_window_cb(void *arg)
 {
     HWND hwnd1, hwnd2, default_ime_wnd;
 
+    /* Message-only window doesn't create associated IME window. */
     test_phase = PHASE_UNKNOWN;
     hwnd1 = CreateWindowA(wndcls, "Wine imm32.dll test",
                           WS_OVERLAPPEDWINDOW,
                           CW_USEDEFAULT, CW_USEDEFAULT,
                           240, 120, HWND_MESSAGE, NULL, GetModuleHandleW(NULL), NULL);
     default_ime_wnd = ImmGetDefaultIMEWnd(hwnd1);
-    ok(!IsWindow(default_ime_wnd), "Expected no IME windows, got %p\n", default_ime_wnd);
+    ok(!default_ime_wnd, "Expected no IME windows, got %p\n", default_ime_wnd);
 
+    /* Setting message-only window as owner at creation,
+       doesn't create associated IME window. */
     hwnd2 = CreateWindowA(wndcls, "Wine imm32.dll test",
                           WS_OVERLAPPEDWINDOW,
                           CW_USEDEFAULT, CW_USEDEFAULT,
                           240, 120, hwnd1, NULL, GetModuleHandleW(NULL), NULL);
     default_ime_wnd = ImmGetDefaultIMEWnd(hwnd2);
-    ok(IsWindow(default_ime_wnd), "Expected IME window existence\n");
+    todo_wine ok(!default_ime_wnd || broken(IsWindow(default_ime_wnd)), "Expected no IME windows, got %p\n", default_ime_wnd);
 
     DestroyWindow(hwnd2);
     DestroyWindow(hwnd1);
 
+    /* Making window message-only after creation,
+       doesn't disassociate IME window. */
     hwnd1 = CreateWindowA(wndcls, "Wine imm32.dll test",
                           WS_OVERLAPPEDWINDOW,
                           CW_USEDEFAULT, CW_USEDEFAULT,