diff --git a/dlls/ddraw/tests/dsurface.c b/dlls/ddraw/tests/dsurface.c
index ca9d3b75309..9bf5643d1f5 100644
--- a/dlls/ddraw/tests/dsurface.c
+++ b/dlls/ddraw/tests/dsurface.c
@@ -4547,7 +4547,7 @@ static void set_surface_desc_test(void)
     IDirectDrawSurface_Release(surface);
     hr = IDirectDrawSurface3_GetSurfaceDesc(surface3, &ddsd);
     ok(SUCCEEDED(hr), "IDirectDrawSurface3_GetSurfaceDesc failed, hr %#x.\n", hr);
-    old_pitch = ddsd.lPitch;
+    old_pitch = U1(ddsd).lPitch;
 
     /* Setting width and height is an error */
     reset_ddsd(&ddsd);
@@ -4570,14 +4570,14 @@ static void set_surface_desc_test(void)
     /* Setting the pitch is an error */
     reset_ddsd(&ddsd);
     ddsd.dwFlags = DDSD_PITCH;
-    ddsd.lPitch = 1024;
+    U1(ddsd).lPitch = 1024;
     hr = IDirectDrawSurface3_SetSurfaceDesc(surface3, &ddsd, 0);
     ok(hr == DDERR_INVALIDPARAMS, "SetSurfaceDesc returned %#x, expected %#x\n", hr, DDERR_INVALIDPARAMS);
     ddsd.dwFlags = DDSD_PITCH | DDSD_LPSURFACE;
     ddsd.lpSurface = data;
     hr = IDirectDrawSurface3_SetSurfaceDesc(surface3, &ddsd, 0);
     ok(hr == DDERR_INVALIDPARAMS, "SetSurfaceDesc returned %#x, expected %#x\n", hr, DDERR_INVALIDPARAMS);
-    ddsd.lPitch = old_pitch;
+    U1(ddsd).lPitch = old_pitch;
     hr = IDirectDrawSurface3_SetSurfaceDesc(surface3, &ddsd, 0);
     ok(hr == DDERR_INVALIDPARAMS, "SetSurfaceDesc returned %#x, expected %#x\n", hr, DDERR_INVALIDPARAMS);
 
diff --git a/dlls/ddraw/tests/overlay.c b/dlls/ddraw/tests/overlay.c
index 64d00638eaa..2cf48c7fd95 100644
--- a/dlls/ddraw/tests/overlay.c
+++ b/dlls/ddraw/tests/overlay.c
@@ -225,17 +225,17 @@ static void yv12_test(void)
     /* Luminance */
     for (y = 0; y < desc.dwHeight; y++)
     {
-        memset(base + desc.lPitch * y, 0x10, desc.dwWidth);
+        memset(base + U1(desc).lPitch * y, 0x10, desc.dwWidth);
     }
     /* V */
     for (; y < desc.dwHeight + desc.dwHeight / 4; y++)
     {
-        memset(base + desc.lPitch * y, 0x20, desc.dwWidth);
+        memset(base + U1(desc).lPitch * y, 0x20, desc.dwWidth);
     }
     /* U */
     for (; y < desc.dwHeight + desc.dwHeight / 2; y++)
     {
-        memset(base + desc.lPitch * y, 0x30, desc.dwWidth);
+        memset(base + U1(desc).lPitch * y, 0x30, desc.dwWidth);
     }
 
     hr = IDirectDrawSurface7_Unlock(surface, NULL);
@@ -276,9 +276,9 @@ static void yv12_test(void)
 
         base = desc.lpSurface;
         ok(base[0] == 0x10, "Y data is 0x%02x, expected 0x10\n", base[0]);
-        base += desc.dwHeight * desc.lPitch;
+        base += desc.dwHeight * U1(desc).lPitch;
         todo_wine ok(base[0] == 0x20, "V data is 0x%02x, expected 0x20\n", base[0]);
-        base += desc.dwHeight / 4 * desc.lPitch;
+        base += desc.dwHeight / 4 * U1(desc).lPitch;
         todo_wine ok(base[0] == 0x30, "U data is 0x%02x, expected 0x30\n", base[0]);
 
         hr = IDirectDrawSurface7_Unlock(dst, NULL);