diff --git a/templates/event-generator/prepare_experiment.sh b/templates/event-generator/prepare_experiment.sh
index 1a1c75a1748f76527ee428735ff4774b8b5a7d06..9d1c09a93671a2a354bc699de422fd7882e23dc9 100644
--- a/templates/event-generator/prepare_experiment.sh
+++ b/templates/event-generator/prepare_experiment.sh
@@ -19,6 +19,9 @@ COMMON_INIDATA_FOLDER=${WORKDIR}/inidata
 mkdir -p "${COMMON_INIDATA_FOLDER}"
 cd "${COMMON_INIDATA_FOLDER}" || exit
 
+# Change permissions
+chmod 660 ./*
+
 # Download or copy required input files
 function download_file() {
   URL=$1