diff --git a/types/p2/index.d.ts b/types/p2/index.d.ts
index e9b8b79054..89dda72b9c 100644
--- a/types/p2/index.d.ts
+++ b/types/p2/index.d.ts
@@ -384,7 +384,7 @@ declare namespace p2 {
         restitution: number;
         stiffness: number;
         relaxation: number;
-        frictionStuffness: number;
+        frictionStiffness: number;
         frictionRelaxation: number;
         surfaceVelocity: number;
         contactSkinSize: number;