diff --git a/dlls/wined3d/surface.c b/dlls/wined3d/surface.c
index 222159b72c4..628c83a7868 100644
--- a/dlls/wined3d/surface.c
+++ b/dlls/wined3d/surface.c
@@ -1521,7 +1521,8 @@ static struct wined3d_texture *surface_convert_format(struct wined3d_texture *sr
 
     if (!(conv = find_converter(src_format->id, dst_format->id)) && (!device->d3d_initialized
             || !is_identity_fixup(src_format->color_fixup) || src_format->convert
-            || !is_identity_fixup(dst_format->color_fixup) || dst_format->convert))
+            || !is_identity_fixup(dst_format->color_fixup) || dst_format->convert
+            || (src_format->flags[WINED3D_GL_RES_TYPE_TEX_2D] & WINED3DFMT_FLAG_COMPRESSED)))
     {
         FIXME("Cannot find a conversion function from format %s to %s.\n",
                 debug_d3dformat(src_format->id), debug_d3dformat(dst_format->id));