diff --git a/debug.go b/debug.go
index d6d8bce6..ce908dc7 100644
--- a/debug.go
+++ b/debug.go
@@ -16,6 +16,7 @@ func IsDebugging() bool {
 	return ginMode == debugCode
 }
 
+// DebugPrintRouteFunc indicates debug log output format.
 var DebugPrintRouteFunc func(httpMethod, absolutePath, handlerName string, nuHandlers int)
 
 func debugPrintRoute(httpMethod, absolutePath string, handlers HandlersChain) {
diff --git a/routergroup.go b/routergroup.go
index be561dee..579aa7dc 100644
--- a/routergroup.go
+++ b/routergroup.go
@@ -17,7 +17,7 @@ type IRouter interface {
 	Group(string, ...HandlerFunc) *RouterGroup
 }
 
-// Iroutes defins all router handle interface.
+// IRoutes defines all router handle interface.
 type IRoutes interface {
 	Use(...HandlerFunc) IRoutes