diff --git a/sbt/sbt b/sbt/sbt
index 1b1aa1483a82..eb17658e6d83 100755
--- a/sbt/sbt
+++ b/sbt/sbt
@@ -28,7 +28,7 @@ realpath () {
 )
 }
 
-. $(dirname $(realpath $0))/sbt-launch-lib.bash
+. "$(dirname "$(realpath "$0")")"/sbt-launch-lib.bash
 
 
 declare -r noshare_opts="-Dsbt.global.base=project/.sbtboot -Dsbt.boot.directory=project/.boot -Dsbt.ivy.home=project/.ivy"