diff --git a/launch/demo/demo_turtlebot_mapping.launch b/launch/demo/demo_turtlebot_mapping.launch
index 81d8b6c2..03a79bda 100644
--- a/launch/demo/demo_turtlebot_mapping.launch
+++ b/launch/demo/demo_turtlebot_mapping.launch
@@ -25,9 +25,13 @@
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@@ -42,7 +46,7 @@
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@@ -51,17 +55,16 @@
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@@ -77,22 +80,17 @@
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