diff --git a/releng/releng_isojigdo b/releng/releng_isojigdo
index 3517acc5..f49bfbce 100755
--- a/releng/releng_isojigdo
+++ b/releng/releng_isojigdo
@@ -15,7 +15,7 @@ IMG_EXTRACT_DIR=${TMP_DATA_DIR}/${SELF}_extracted_tree
 RELENG_XORRISO=""
 
 RELENG_DIR="${IMG_EXTRACT_DIR}"
-RELENG_ISOLINUX_BIN="${IMG_EXTRACT_DIR}/isolinux/isolinux.bin"
+RELENG_ISOLINUX_BIN="isolinux/isolinux.bin"
 RELENG_BOOT_CAT="isolinux/boot.cat"
 RELENG_IMG=cimage
 
@@ -153,7 +153,7 @@ CMD="${RELENG_XORRISO} \
 "
 
 # BOOT section
-if [ -f "${RELENG_ISOLINUX_BIN}" -a -f "${ISOHYBRID_MBR}" -a -f "${APPEND_PART}" ]; then
+if [ -f "${TMP_DATA_DIR}"/"${RELENG_ISOLINUX_BIN}" -a -f "${ISOHYBRID_MBR}" -a -f "${APPEND_PART}" ]; then
 CMD+="\
  -b ${RELENG_ISOLINUX_BIN} \
  -c ${RELENG_BOOT_CAT} \