diff --git a/modules/gfx/src/scene.cc b/modules/gfx/src/scene.cc
index 1f0abadc4f0664044f1e94b597b4f0b0e40ab40c..337077ee7a1248f9fb06633db808bb810879f6c6 100644
--- a/modules/gfx/src/scene.cc
+++ b/modules/gfx/src/scene.cc
@@ -1331,7 +1331,7 @@ void Scene::SetStereoDistance(Real d)
 void Scene::SetStereoAlg(unsigned int a)
 {
   stereo_alg_=a;
-  if(stereo_alg_<0 || stereo_alg_>1) {
+  if(stereo_alg_>1) {
     stereo_alg_=0;
   }
   if(stereo_mode_>0) {