diff --git a/src/typeahead/typeahead.directive.ts b/src/typeahead/typeahead.directive.ts
index d55bc0c920..97941712c9 100644
--- a/src/typeahead/typeahead.directive.ts
+++ b/src/typeahead/typeahead.directive.ts
@@ -129,7 +129,7 @@ export class TypeaheadDirective implements OnInit, OnDestroy {
       : e.target.textContent !== undefined
         ? e.target.textContent
         : e.target.innerText;
-    if (value && value.trim().length >= this.typeaheadMinLength) {
+    if (value != null && value.trim().length >= this.typeaheadMinLength) {
       this.typeaheadLoading.emit(true);
       this.keyUpEventEmitter.emit(e.target.value);
     } else {