diff --git a/cors.go b/cors.go
index c872e3f..a58154a 100644
--- a/cors.go
+++ b/cors.go
@@ -38,7 +38,7 @@ type Config struct {
 	// API specification
 	ExposeHeaders []string
 
-	// MaxAge indicates how long (in seconds) the results of a preflight request
+	// MaxAge indicates how long (with second-precision) the results of a preflight request 
 	// can be cached
 	MaxAge time.Duration