diff --git a/dlls/windowscodecs/scaler.c b/dlls/windowscodecs/scaler.c
index f576ad51fd2..46f1dbfb81c 100644
--- a/dlls/windowscodecs/scaler.c
+++ b/dlls/windowscodecs/scaler.c
@@ -108,12 +108,12 @@ static HRESULT WINAPI BitmapScaler_GetSize(IWICBitmapScaler *iface,
     BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
     TRACE("(%p,%p,%p)\n", iface, puiWidth, puiHeight);
 
+    if (!This->source)
+        return WINCODEC_ERR_NOTINITIALIZED;
+
     if (!puiWidth || !puiHeight)
         return E_INVALIDARG;
 
-    if (!This->source)
-        return WINCODEC_ERR_WRONGSTATE;
-
     *puiWidth = This->width;
     *puiHeight = This->height;
 
diff --git a/dlls/windowscodecs/tests/bitmap.c b/dlls/windowscodecs/tests/bitmap.c
index 34da3b20833..e4cb8637f4e 100644
--- a/dlls/windowscodecs/tests/bitmap.c
+++ b/dlls/windowscodecs/tests/bitmap.c
@@ -1107,17 +1107,14 @@ static void test_bitmap_scaler(void)
     ok(hr == E_INVALIDARG, "Unexpected hr %#x.\n", hr);
 
     hr = IWICBitmapScaler_GetSize(scaler, NULL, &height);
-todo_wine
     ok(hr == WINCODEC_ERR_NOTINITIALIZED, "Unexpected hr %#x.\n", hr);
 
     hr = IWICBitmapScaler_GetSize(scaler, &width, NULL);
-todo_wine
     ok(hr == WINCODEC_ERR_NOTINITIALIZED, "Unexpected hr %#x.\n", hr);
 
     width = 123;
     height = 321;
     hr = IWICBitmapScaler_GetSize(scaler, &width, &height);
-todo_wine
     ok(hr == WINCODEC_ERR_NOTINITIALIZED, "Unexpected hr %#x.\n", hr);
     ok(width == 123, "Unexpected width %u.\n", width);
     ok(height == 321, "Unexpected height %u.\n", height);
@@ -1127,7 +1124,6 @@ todo_wine
     ok(hr == E_INVALIDARG, "Unexpected hr %#x.\n", hr);
 
     hr = IWICBitmapScaler_GetSize(scaler, &width, &height);
-todo_wine
     ok(hr == WINCODEC_ERR_NOTINITIALIZED, "Unexpected hr %#x.\n", hr);
 
     hr = IWICBitmapScaler_Initialize(scaler, (IWICBitmapSource *)bitmap, 0, 2,
@@ -1135,7 +1131,6 @@ todo_wine
     ok(hr == E_INVALIDARG, "Unexpected hr %#x.\n", hr);
 
     hr = IWICBitmapScaler_GetSize(scaler, &width, &height);
-todo_wine
     ok(hr == WINCODEC_ERR_NOTINITIALIZED, "Unexpected hr %#x.\n", hr);
 
     hr = IWICBitmapScaler_Initialize(scaler, NULL, 8, 4,