diff --git a/sot_pyrene_bringup/launch/geometric_simu.launch b/sot_pyrene_bringup/launch/geometric_simu.launch
index 991468d692a9f656139c1ad866194e04bdea68fc..340a0bd04585c59510f237a3b33de47853bbc99e 100644
--- a/sot_pyrene_bringup/launch/geometric_simu.launch
+++ b/sot_pyrene_bringup/launch/geometric_simu.launch
@@ -6,7 +6,7 @@
   <arg name="robot" default="pyrene" />
   <arg name="libsot" default="libsot-pyrene-controller.so" />   
 
-  <arg name="sot-launch-prefix" default="" />   
+  <arg name="sot-launch-prefix" default="" />
 
   <include file="$(find sot_pyrene_bringup)/launch/geometric_simu_context.launch" >
     <arg name="robot" value="$(arg robot)" />