diff --git a/types/pipelinestage.d.ts b/types/pipelinestage.d.ts
index 9086a4afb30..5d3c4023f0d 100644
--- a/types/pipelinestage.d.ts
+++ b/types/pipelinestage.d.ts
@@ -8,6 +8,7 @@ declare module 'mongoose' {
     | PipelineStage.BucketAuto
     | PipelineStage.CollStats
     | PipelineStage.Count
+    | PipelineStage.Densify
     | PipelineStage.Facet
     | PipelineStage.GeoNear
     | PipelineStage.GraphLookup