diff --git a/Tools/setup/arch.sh b/Tools/setup/arch.sh
index 79d44496dc..b64040c8ff 100644
--- a/Tools/setup/arch.sh
+++ b/Tools/setup/arch.sh
@@ -155,8 +155,7 @@ if [[ $INSTALL_SIM == "true" ]]; then
 			# fix VMWare 3D graphics acceleration for gazebo
 			exportline="export SVGA_VGPU10=0"
 
-			if grep -Fxq "$exportline" $HOME/.profile; then
-			else
+			if !grep -Fxq "$exportline" $HOME/.profile; then
 				echo $exportline >> $HOME/.profile;
 			fi
 		fi