diff --git a/src/game/Intersect.cxx b/src/game/Intersect.cxx
index 099d600047..3f75ff6c83 100644
--- a/src/game/Intersect.cxx
+++ b/src/game/Intersect.cxx
@@ -332,8 +332,8 @@ static float timeRayHitsPlane(const float pb[3], const float db[3],
     for (i = 0; i < 3; i++)
         velocity += n[i] * db[i];
 
-    // if velocity is greater than 0 no way to trespass the plane
-    if (velocity > 0.0f)
+    // if velocity is greater or equal than 0 no way to trespass the plane
+    if (velocity >= 0.0f)
         return -1.0f;
 
     // time is ... that is normalized