diff --git a/build/linux/dist/arduino b/build/linux/dist/arduino
index d371e768ab4..8e985c41979 100755
--- a/build/linux/dist/arduino
+++ b/build/linux/dist/arduino
@@ -1,8 +1,8 @@
 #!/bin/sh
  
-APPDIR="$(dirname -- $(readlink -f -- "${0}") )"
+APPDIR=$(dirname -- "$(readlink -f -- "${0}")" )
 
-cd $APPDIR
+cd "$APPDIR"
  
 for LIB in \
     java/lib/rt.jar \