diff --git a/releng/releng_isojigdo b/releng/releng_isojigdo
index 5614dbf4..42c708ef 100755
--- a/releng/releng_isojigdo
+++ b/releng/releng_isojigdo
@@ -127,7 +127,7 @@ RES="${RELENG_IMG}.iso ${RELENG_IMG}.new ${RELENG_IMG}.md5 ${RELENG_IMG}.jigdo $
 # xorriso version details, incl. underlying libraries
 "${RELENG_XORRISO}" -version
 if ! "${RELENG_XORRISO}" -version | grep libjte >/dev/null 2>&1; then
- printf "\n${SELF}: JTE not supported with this xorriso build. Install jigit and rebuild."
+ printf "\n${SELF}: JTE not supported with this xorriso build. Install jigit >=1.18 and rebuild."
  printf "\n${SELF}: See http://www.einval.com/~steve/software/JTE/\n"
  cleanup
  exit 9
@@ -231,7 +231,7 @@ if which jigdo-gen-md5-list >/dev/null 2>&1; then
  jigdo-gen-md5-list ${RELENG_DIR} > ${JIGDO_GEN_MD5}
  printf "Done.\n"
 else
- printf "\n${SELF}: Not found: jigdo-gen-md5-list. Install jigit."
+ printf "\n${SELF}: Not found: jigdo-gen-md5-list. Install jigit >= 1.18."
  printf "\n${SELF}: See http://www.einval.com/~steve/software/JTE/\n"
  cleanup
  exit 14