diff --git a/code/ryzom/client/unix/upgd_nl.sh b/code/ryzom/client/unix/upgd_nl.sh
index a1af6867e..6c44db85b 100644
--- a/code/ryzom/client/unix/upgd_nl.sh
+++ b/code/ryzom/client/unix/upgd_nl.sh
@@ -7,9 +7,9 @@ then
 fi
 
 # executable flag for all executables
-chmod +x $ROOTPATH/ryzom_client
-chmod +x $ROOTPATH/crash_report
-chmod +x $ROOTPATH/ryzom_client_patcher
-chmod +x $ROOTPATH/ryzom_configuration
+chmod +x "$ROOTPATH/ryzom_client"
+chmod +x "$ROOTPATH/crash_report"
+chmod +x "$ROOTPATH/ryzom_client_patcher"
+chmod +x "$ROOTPATH/ryzom_configuration"
 
 exit 0