diff --git a/indra/llrender/llfontregistry.cpp b/indra/llrender/llfontregistry.cpp
index 18e4a6915d8108850e3900c6d3bba69c950ede68..455a68ca81c881d046b6780d2539fb2a545eb4d4 100644
--- a/indra/llrender/llfontregistry.cpp
+++ b/indra/llrender/llfontregistry.cpp
@@ -104,7 +104,7 @@ bool removeSubString(std::string& str, const std::string& substr)
 	size_t pos = str.find(substr);
 	if (pos != string::npos)
 	{
-		str.replace(pos,substr.length(),(const char *)NULL, 0);
+		str.replace(pos,substr.length(), "", 0);
 		return true;
 	}
 	return false;