diff --git a/intern/cycles/render/tile.cpp b/intern/cycles/render/tile.cpp
index 8692be7dd51..14fd89e1a39 100644
--- a/intern/cycles/render/tile.cpp
+++ b/intern/cycles/render/tile.cpp
@@ -163,6 +163,9 @@ int TileManager::gen_tiles(bool sliced)
 				}
 			}
 		}
+		if(sliced) {
+			tile_list++;
+		}
 	}
 
 	return tile_index;