diff --git a/netwerk/protocol/http/src/nsHTTPAtomList.h b/netwerk/protocol/http/src/nsHTTPAtomList.h
index f5364328f1dd..bcb01981b1e0 100644
--- a/netwerk/protocol/http/src/nsHTTPAtomList.h
+++ b/netwerk/protocol/http/src/nsHTTPAtomList.h
@@ -72,7 +72,7 @@ HTTP_ATOM(Host,                      "host")
 HTTP_ATOM(If_Match,                  "if-match")
 HTTP_ATOM(If_Match_Any,              "if-match-any")
 HTTP_ATOM(If_Modified_Since,         "if-modified-since")
-HTTP_ATOM(If_None_Match,             "if-mone-match")
+HTTP_ATOM(If_None_Match,             "if-none-match")
 HTTP_ATOM(If_None_Match_Any,         "if-none-match-any")
 HTTP_ATOM(If_Range,                  "if-range")
 HTTP_ATOM(If_Unmodified_Since,       "if-unmodified-since")