--- a/streamlet-examples/hash	Sun Jan 19 17:05:46 2020 +0100
+++ b/streamlet-examples/hash	Sun Jan 19 18:00:31 2020 +0100
@@ -30,7 +30,7 @@
 #   --scriptlet hash --option "sha1" --as "sha1" --option "sha256" --as "sha256"
 
 
-. "$(dirname $0)/streamlet-common.sh"
+. "$(dirname "$0")/streamlet-common.sh"
 
 processMessage_WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA() {
 	hashTypes=()