diff --git a/indra/newview/llvoiceclient.h b/indra/newview/llvoiceclient.h
index 3fa82105a3b79121c1910c1f4f75edb7fa40919d..f1a7d3dbec2b22bd2d6fe9aa0a9af930ae5892ab 100644
--- a/indra/newview/llvoiceclient.h
+++ b/indra/newview/llvoiceclient.h
@@ -442,7 +442,7 @@ private:
 	void load();
 	void save();
 
-	typedef std::map<LLUUID, S32> speaker_data_map_t;
+	typedef std::map<LLUUID, F32> speaker_data_map_t;
 	speaker_data_map_t mSpeakersData;
 };