diff --git a/dlls/mshtml/htmlwindow.c b/dlls/mshtml/htmlwindow.c
index e7f6144a795..d9f13467cd5 100644
--- a/dlls/mshtml/htmlwindow.c
+++ b/dlls/mshtml/htmlwindow.c
@@ -1461,7 +1461,7 @@ static HRESULT WINAPI HTMLWindow2_moveBy(IHTMLWindow2 *iface, LONG x, LONG y)
 {
     HTMLWindow *This = impl_from_IHTMLWindow2(iface);
     FIXME("(%p)->(%d %d)\n", This, x, y);
-    return E_NOTIMPL;
+    return S_FALSE;
 }
 
 static HRESULT WINAPI HTMLWindow2_resizeTo(IHTMLWindow2 *iface, LONG x, LONG y)
@@ -1475,7 +1475,7 @@ static HRESULT WINAPI HTMLWindow2_resizeBy(IHTMLWindow2 *iface, LONG x, LONG y)
 {
     HTMLWindow *This = impl_from_IHTMLWindow2(iface);
     FIXME("(%p)->(%d %d)\n", This, x, y);
-    return E_NOTIMPL;
+    return S_FALSE;
 }
 
 static HRESULT WINAPI HTMLWindow2_get_external(IHTMLWindow2 *iface, IDispatch **p)
diff --git a/dlls/mshtml/tests/dom.c b/dlls/mshtml/tests/dom.c
index e5275e8bbc6..dce65d541b6 100644
--- a/dlls/mshtml/tests/dom.c
+++ b/dlls/mshtml/tests/dom.c
@@ -6646,6 +6646,12 @@ static void test_window(IHTMLDocument2 *doc)
     set_window_status(window, "Test!");
     test_history(window);
 
+    hres = IHTMLWindow2_moveBy(window, 0, 0);
+    ok(hres == S_FALSE, "moveBy failed: %08x\n", hres);
+
+    hres = IHTMLWindow2_resizeBy(window, 0, 0);
+    ok(hres == S_FALSE, "resizeBy failed: %08x\n", hres);
+
     hres = IHTMLWindow2_QueryInterface(window, &IID_IHTMLWindow5, (void**)&window5);
     if(SUCCEEDED(hres)) {
         ok(window5 != NULL, "window5 == NULL\n");