diff --git a/light/bounce.cc b/light/bounce.cc
index 3fff8053..60941385 100644
--- a/light/bounce.cc
+++ b/light/bounce.cc
@@ -77,6 +77,10 @@ static bool Face_ShouldBounce(const mbsp_t *bsp, const mface_t *face)
         return false;
     }
 
+    if (mi->object_channel_mask.value() != CHANNEL_MASK_DEFAULT) {
+        return false;
+    }
+
     return true;
 }