diff --git a/README.md b/README.md
index af5baee672..c0f7027f35 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ rush docker:build   # Will build docker containers for all applications.
 cd ./dev/
 docker-compose up -d --force-recreate # Will setup all containers
 
-# we a few seconds delay, to be sure elastic is up and running.
+# wait a few seconds delay, to be sure elastic is up and running.
 ./deploy/setup-es-attachment-pipeline.sh    # Setup elastic search plugin configuration.
 ```
 
diff --git a/models/tracker/src/index.ts b/models/tracker/src/index.ts
index 1afb7571ea..6402b40bae 100644
--- a/models/tracker/src/index.ts
+++ b/models/tracker/src/index.ts
@@ -203,6 +203,7 @@ export class TIssue extends TAttachedDoc implements Issue {
   priority!: IssuePriority
 
   @Prop(TypeNumber(), tracker.string.Number)
+  @Index(IndexKind.FullText)
   number!: number
 
   @Prop(TypeRef(contact.class.Employee), tracker.string.Assignee)
diff --git a/server/core/src/fulltext.ts b/server/core/src/fulltext.ts
index 341ba6f322..f4e1b94557 100644
--- a/server/core/src/fulltext.ts
+++ b/server/core/src/fulltext.ts
@@ -324,7 +324,9 @@ export class FullTextIndex implements WithFind {
 function isFullTextAttribute (attr: AnyAttribute): boolean {
   return (
     attr.index === IndexKind.FullText &&
-    (attr.type._class === core.class.TypeString || attr.type._class === core.class.TypeMarkup)
+    (attr.type._class === core.class.TypeNumber ||
+      attr.type._class === core.class.TypeString ||
+      attr.type._class === core.class.TypeMarkup)
   )
 }