diff --git a/scripts/init.sh b/scripts/init.sh
index e13ae74c..d612eb4f 100755
--- a/scripts/init.sh
+++ b/scripts/init.sh
@@ -82,6 +82,11 @@ if [ "$1" == "clean" ] || [ ! -d "$HOME/.laconicd/data/blockstore.db" ]; then
     update_genesis ".app_state[\"registry\"][\"params\"][\"authority_auction_reveals_duration\"]=\"${AUTHORITY_AUCTION_REVEALS_DURATION}s\""
   fi
 
+  if [[ -n $AUTHORITY_GRACE_PERIOD ]]; then
+    echo "Setting authority_grace_period to $AUTHORITY_GRACE_PERIOD seconds."
+    update_genesis ".app_state[\"registry\"][\"params\"][\"authority_grace_period\"]=\"${AUTHORITY_GRACE_PERIOD}s\""
+  fi
+
   # increase block time (?)
   update_genesis '.consensus["params"]["block"]["time_iota_ms"]="1000"'