diff --git a/indra/newview/llagent.cpp b/indra/newview/llagent.cpp
index 561c644955..0ddcb8c14d 100644
--- a/indra/newview/llagent.cpp
+++ b/indra/newview/llagent.cpp
@@ -3502,7 +3502,7 @@ void LLAgent::sendRevokePermissions(const LLUUID & target, U32 permissions)
 
 		msg->nextBlockFast(_PREHASH_Data);
 		msg->addUUIDFast(_PREHASH_ObjectID, target);		// Must be in the region
-		msg->addS32Fast(_PREHASH_ObjectPermissions, (S32) permissions);
+		msg->addU32Fast(_PREHASH_ObjectPermissions, (U32) permissions);
 
 		sendReliableMessage();
 	}