diff --git a/gfx/drivers_renderchain/d3d9_cg_renderchain.c b/gfx/drivers_renderchain/d3d9_cg_renderchain.c
index 1214c9cb58..1132b996dc 100644
--- a/gfx/drivers_renderchain/d3d9_cg_renderchain.c
+++ b/gfx/drivers_renderchain/d3d9_cg_renderchain.c
@@ -1326,6 +1326,13 @@ static void cg_d3d9_renderchain_set_vertices(
    }
 }
 
+static void cg_d3d9_renderchain_set_viewport(
+      cg_renderchain_t *chain,
+      D3DVIEWPORT *vp)
+{
+   d3d_set_viewports(chain->dev, vp);
+}
+
 static void cg_d3d9_renderchain_blit_to_texture(
       cg_renderchain_t *chain,
       const void *frame,
@@ -1532,7 +1539,7 @@ static bool d3d9_cg_renderchain_render(
       viewport.Height = out_height;
 
       if (chain)
-         d3d_set_viewports(chain->dev, &viewport);
+         cg_d3d9_renderchain_set_viewport(chain, &viewport);
 
       cg_d3d9_renderchain_set_vertices(chain, from_pass,
             current_width, current_height,
@@ -1558,7 +1565,7 @@ static bool d3d9_cg_renderchain_render(
          current_width, current_height, chain->final_viewport);
 
    if (chain)
-      d3d_set_viewports(chain->dev, &chain->final_viewport);
+      cg_d3d9_renderchain_set_viewport(chain, chain->final_viewport);
 
    cg_d3d9_renderchain_set_vertices(chain, last_pass,
          current_width, current_height,