diff --git a/package/osx/startup_script.sh b/package/osx/startup_script.sh
index b98fa5bdc4..4f665ac644 100644
--- a/package/osx/startup_script.sh
+++ b/package/osx/startup_script.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 
 DIR=$(dirname "$0")
-$DIR/perl-local -I$DIR/local-lib/lib/perl5 $DIR/slic3r.pl $@
+"$DIR/perl-local" -I"$DIR/local-lib/lib/perl5" "$DIR/slic3r.pl" $@