diff --git a/src/cares_wrap.cc b/src/cares_wrap.cc
index 041d4a91f5a..d7669c2770a 100644
--- a/src/cares_wrap.cc
+++ b/src/cares_wrap.cc
@@ -58,7 +58,6 @@ using v8::Integer;
 using v8::Local;
 using v8::Null;
 using v8::Object;
-using v8::Persistent;
 using v8::String;
 using v8::Value;