diff --git a/src/keywords.ts b/src/keywords.ts
index b8c5f7e..effa997 100644
--- a/src/keywords.ts
+++ b/src/keywords.ts
@@ -77,7 +77,8 @@ export default [
   "group",
   "groups",
   "header",
-  "http",
+  "horizon",
+  "http",  
   "if",
   "ignore",
   "in",
@@ -158,6 +159,7 @@ export default [
   "squash",
   "start",
   "statistics_enabled",
+  "step",
   "suspend",
   "system",
   "table",