diff --git a/Library/ENV/4.3/cc b/Library/ENV/4.3/cc
index b96c0015ea..5935cb5812 100755
--- a/Library/ENV/4.3/cc
+++ b/Library/ENV/4.3/cc
@@ -66,7 +66,7 @@ class Cmd
       when /clang/
         'clang++'
       when /llvm-gcc/
-        'g++'
+        'llvm-g++-4.2'
       when /gcc(-4.2)?$/
         'g++-4.2'
       when /gcc-4.0/