diff --git a/src/net/http/cookiejar/jar.go b/src/net/http/cookiejar/jar.go
index 0e0fac9286..ca0fdc57d7 100644
--- a/src/net/http/cookiejar/jar.go
+++ b/src/net/http/cookiejar/jar.go
@@ -107,7 +107,7 @@ type entry struct {
 	seqNum uint64
 }
 
-// Id returns the domain;path;name triple of e as an id.
+// id returns the domain;path;name triple of e as an id.
 func (e *entry) id() string {
 	return fmt.Sprintf("%s;%s;%s", e.Domain, e.Path, e.Name)
 }