diff --git a/releng/releng_isojigdo b/releng/releng_isojigdo
index 9a2e3a91..fa1c00b7 100755
--- a/releng/releng_isojigdo
+++ b/releng/releng_isojigdo
@@ -9,7 +9,7 @@ SELF=$(basename "$0")
 CONFFILE=$HOME/.libburnia-releng/${SELF}.conf
 GEN_DATA_DIR=releng_generated_data/${SELF}
 TMP_DATA_DIR=releng_generated_data
-IMG_EXTRACT_DIR=${TMP_DATA_DIR}/${SELF}_extracted_tree
+IMG_EXTRACT_DIR=${GEN_DATA_DIR}/${SELF}_extracted_tree
 
 # to be set by the config file
 RELENG_XORRISO=""
@@ -38,13 +38,20 @@ Usage:
 HLP
 }
 
+cleanup() {
+  # safety net, just in case -> we want to be in the starting
+  # directory before removing whatever self-generated stuff
+  cd "${START_DIR_DONT_CHANGE}" || exit 15
+  chmod +w -R ${GEN_DATA_DIR}
+  rm -rf ${GEN_DATA_DIR}
+  printf "${SELF}: Removed %s\n" ${GEN_DATA_DIR}
+}
+
 #####################################################################
 # cleanup
 if [ "${1}" == "-cleanup" ]; then
- cd "${START_DIR_DONT_CHANGE}" || exit 2
  if [ -d "${GEN_DATA_DIR}" ]; then
-    rm -rf ${GEN_DATA_DIR}
-    printf "${SELF}: removed %s\n" ${GEN_DATA_DIR}
+    cleanup
  else
     printf "${SELF}: ${GEN_DATA_DIR} does not exist.\n"
  fi
@@ -238,11 +245,7 @@ esac
 
 # sort out the cruft
 if [ ${KEEP} -eq 0 ]; then
- # safety net, just in case -> we want to be in the starting
- # directory before removing whatever self-generated stuff
- cd "${START_DIR_DONT_CHANGE}" || exit 15
- rm -rf ${GEN_DATA_DIR}
- printf "${SELF}: Removed %s\n" ${GEN_DATA_DIR}
+ cleanup
 else
  printf "${SELF}: Leaving %s\n" ${GEN_DATA_DIR}
 fi