diff --git a/doc/contributions.txt b/doc/contributions.txt
index 2d27562e37a5cd6413b75d880fb80e464b004a8b..5ae1306f3cb932a33a80c2b0321ff885bb1c5161 100755
--- a/doc/contributions.txt
+++ b/doc/contributions.txt
@@ -185,6 +185,7 @@ Ansariel Hiller
 	BUG-3764
 	STORM-1984
 	STORM-1979
+	MAINT-4677
 Aralara Rajal
 Arare Chantilly
 	CHUIBUG-191
diff --git a/indra/llui/llurlaction.cpp b/indra/llui/llurlaction.cpp
index 12537d9dd18a7ce67685bdd388b2c67f1acec374..c28dbb85775bd9d15e4744bdb4049c48be85c2cd 100755
--- a/indra/llui/llurlaction.cpp
+++ b/indra/llui/llurlaction.cpp
@@ -227,6 +227,6 @@ void LLUrlAction::blockObject(std::string url)
 	std::string object_name = getObjectName(url);
 	if (LLUUID::validate(object_id))
 	{
-		executeSLURL("secondlife:///app/agent/" + object_id + "/block/" + object_name);
+		executeSLURL("secondlife:///app/agent/" + object_id + "/block/" + LLURI::escape(object_name));
 	}
 }
diff --git a/indra/newview/llpanelprofile.cpp b/indra/newview/llpanelprofile.cpp
index f91c4110c0a7c9e1228f1801baa2a729f7376942..e795e7eedb0b8bd1312dc46c2f612aad222362e3 100755
--- a/indra/newview/llpanelprofile.cpp
+++ b/indra/newview/llpanelprofile.cpp
@@ -168,7 +168,7 @@ class LLAgentHandler : public LLCommandHandler
 		{
 			if (params.size() > 2)
 			{
-				const std::string object_name = params[2].asString();
+				const std::string object_name = LLURI::unescape(params[2].asString());
 				LLMute mute(avatar_id, object_name, LLMute::OBJECT);
 				LLMuteList::getInstance()->add(mute);
 				LLPanelBlockedList::showPanelAndSelect(mute.mID);