diff --git a/basice2e/run.sh b/basice2e/run.sh
index 64038b37c8dd869f235afa3a1ac26c44a5543fc3..bc83fea03d8f31a2ef35614954ab863952da29d6 100755
--- a/basice2e/run.sh
+++ b/basice2e/run.sh
@@ -36,7 +36,7 @@ UDBID=$(../bin/client init -s results/udbsession -l results/udbidgen.log --passw
 echo "GENERATED UDB ID: $UDBID"
 UDBID=$(sed -e 's/[&\\/]/\\&/g; s/$/\\/' -e '$s/\\$//' <<<"$UDBID")
 cp permissioning.yaml permissioning-actual.yaml
-sed -i "s/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMD/$UDBID/g" permissioning-actual.yaml
+sed -i '' "s/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMD/$UDBID/g" permissioning-actual.yaml
 
 
 PERMCMD="../bin/permissioning --logLevel 2 -c permissioning-actual.yaml "