diff --git a/dlls/wined3d/surface.c b/dlls/wined3d/surface.c
index b658832..a16b16c 100644
--- a/dlls/wined3d/surface.c
+++ b/dlls/wined3d/surface.c
@@ -4524,6 +4524,12 @@ HRESULT d3dfmt_get_conv(const struct wined3d_surface *surface, BOOL need_alpha_c
             break;
     }
 
+    if (*convert != NO_CONVERSION)
+    {
+        format->rtInternal = format->glInternal;
+        format->glGammaInternal = format->glInternal;
+    }
+
     return WINED3D_OK;
 }