diff --git a/swfobject/swfobject.d.ts b/swfobject/swfobject.d.ts
index dfce30e82..7f59321f5 100644
--- a/swfobject/swfobject.d.ts
+++ b/swfobject/swfobject.d.ts
@@ -45,7 +45,7 @@ declare module swfobject {
     getFlashPlayerVersion(): IFlashPlayerVersion;
 
     hasFlashPlayerVersion(
-      rev: string
+      rv: string
     ): boolean;
 
     createSWF(