diff --git a/indra/newview/llvoicevivox.cpp b/indra/newview/llvoicevivox.cpp
index dca9dea668f7732a0aa1e67e95eb589fb64ba604..ae0a4038f293ea3bb67dd6262e8ad7bf8bd2f9c9 100644
--- a/indra/newview/llvoicevivox.cpp
+++ b/indra/newview/llvoicevivox.cpp
@@ -5396,7 +5396,7 @@ LLVivoxVoiceClient::sessionStatePtr_t LLVivoxVoiceClient::addSession(const std::
 	return result;
 }
 
-void LLVivoxVoiceClient::clearSessionHandle(const sessionStatePtr_t &session)
+void LLVivoxVoiceClient::clearSessionHandle(sessionStatePtr_t session)
 {
     if (session)
     {
@@ -5420,7 +5420,7 @@ void LLVivoxVoiceClient::clearSessionHandle(const sessionStatePtr_t &session)
 
 }
 
-void LLVivoxVoiceClient::setSessionHandle(const sessionStatePtr_t &session, const std::string &handle)
+void LLVivoxVoiceClient::setSessionHandle(sessionStatePtr_t session, const std::string &handle)
 {
 	// Have to remove the session from the handle-indexed map before changing the handle, or things will break badly.
 	
@@ -5461,7 +5461,7 @@ void LLVivoxVoiceClient::setSessionURI(const sessionStatePtr_t &session, const s
 	verifySessionState();
 }
 
-void LLVivoxVoiceClient::deleteSession(const sessionStatePtr_t &session)
+void LLVivoxVoiceClient::deleteSession(sessionStatePtr_t session)
 {
 	// Remove the session from the handle map
 	if(!session->mHandle.empty())
diff --git a/indra/newview/llvoicevivox.h b/indra/newview/llvoicevivox.h
index b28dd507bb635b87b0ae65cbed75e559b1696f70..1c8c3faa1327696c4f33d05a9cc81feb7b5af8bd 100644
--- a/indra/newview/llvoicevivox.h
+++ b/indra/newview/llvoicevivox.h
@@ -523,10 +523,10 @@ protected:
     sessionStatePtr_t findSession(const LLUUID &participant_id);
 	
     sessionStatePtr_t addSession(const std::string &uri, const std::string &handle = std::string());
-    void clearSessionHandle(const sessionStatePtr_t &session);
-    void setSessionHandle(const sessionStatePtr_t &session, const std::string &handle);
+    void clearSessionHandle(sessionStatePtr_t session);
+    void setSessionHandle(sessionStatePtr_t session, const std::string &handle);
     void setSessionURI(const sessionStatePtr_t &session, const std::string &uri);
-    void deleteSession(const sessionStatePtr_t &session);
+    void deleteSession(sessionStatePtr_t session);
 	void deleteAllSessions(void);
 
 	void verifySessionState(void);