diff --git a/robots/b1_description/xacro/const.xacro b/robots/b1_description/xacro/const.xacro
index 2c84c1a..50b4623 100644
--- a/robots/b1_description/xacro/const.xacro
+++ b/robots/b1_description/xacro/const.xacro
@@ -74,7 +74,7 @@
-
+
@@ -86,7 +86,7 @@
-
+
@@ -109,7 +109,7 @@
-
+
@@ -132,7 +132,7 @@
-
+