diff --git a/d3/d3.d.ts b/d3/d3.d.ts
index 8b89b88cb2..eb1c5b2e2a 100644
--- a/d3/d3.d.ts
+++ b/d3/d3.d.ts
@@ -989,6 +989,7 @@ declare module D3 {
     interface Layout {
         stack(): StackLayout;
         pie(): PieLayout;
+        force(): ForceLayout;
     }
 
     interface StackLayout {