diff --git a/indra/newview/llagent.cpp b/indra/newview/llagent.cpp
index ba250fa4717b41f61a401273a9512df851632fc4..4bd3ca9157326aa1fd3a1ad1e57746ea3d39a1ee 100644
--- a/indra/newview/llagent.cpp
+++ b/indra/newview/llagent.cpp
@@ -742,7 +742,7 @@ BOOL LLAgent::getFlying() const
 //-----------------------------------------------------------------------------
 // setFlying()
 //-----------------------------------------------------------------------------
-void LLAgent::setFlying(BOOL fly)
+void LLAgent::setFlying(BOOL fly, BOOL fail_sound)
 {
 	if (isAgentAvatarValid())
 	{
@@ -771,7 +771,10 @@ void LLAgent::setFlying(BOOL fly)
 			// parcel doesn't let you start fly
 			// gods can always fly
 			// and it's OK if you're already flying
-			make_ui_sound("UISndBadKeystroke");
+			if (fail_sound)
+			{
+				make_ui_sound("UISndBadKeystroke");
+			}
 			return;
 		}
 		if( !was_flying )
diff --git a/indra/newview/llagent.h b/indra/newview/llagent.h
index b1b39b637e48587fd7eda112b16cf7cb1404d16f..ea6f68c482d82472d57d7c5d71082c00365a525d 100644
--- a/indra/newview/llagent.h
+++ b/indra/newview/llagent.h
@@ -337,7 +337,7 @@ class LLAgent : public LLOldEvents::LLObservable
 	//--------------------------------------------------------------------
 public:
 	BOOL			getFlying() const;
-	void			setFlying(BOOL fly);
+	void			setFlying(BOOL fly, BOOL fail_sound = FALSE);
 	static void		toggleFlying();
 	static bool		enableFlying();
 	BOOL			canFly(); 			// Does this parcel allow you to fly?
diff --git a/indra/newview/llviewerkeyboard.cpp b/indra/newview/llviewerkeyboard.cpp
index b89e1497a188d1b5435e377275090c1faf340f5d..e930eb20d3cf185affae53bb182d622dc0a0b2d3 100644
--- a/indra/newview/llviewerkeyboard.cpp
+++ b/indra/newview/llviewerkeyboard.cpp
@@ -64,7 +64,12 @@ LLViewerKeyboard gViewerKeyboard;
 
 void agent_jump( EKeystate s )
 {
-	if( KEYSTATE_UP == s  ) return;
+	static BOOL first_fly_attempt(TRUE);
+	if (KEYSTATE_UP == s)
+	{
+		first_fly_attempt = TRUE;
+		return;
+	}
 	F32 time = gKeyboard->getCurKeyElapsedTime();
 	S32 frame_count = ll_round(gKeyboard->getCurKeyElapsedFrameCount());
 
@@ -77,7 +82,8 @@ void agent_jump( EKeystate s )
 	}
 	else
 	{
-		gAgent.setFlying(TRUE);
+		gAgent.setFlying(TRUE, first_fly_attempt);
+		first_fly_attempt = FALSE;
 		gAgent.moveUp(1);
 	}
 }