diff --git a/docs/retry.md b/docs/retry.md
index 124fc2a..824bfaf 100644
--- a/docs/retry.md
+++ b/docs/retry.md
@@ -97,8 +97,8 @@ import (
 
 func main() {
     var number int
-    var increaseNumber retry.RetryFunc
-	increaseNumber = func() error {
+
+	increaseNumber := func() error {
 		number++
 		if number == 3 {
 			return nil
@@ -139,6 +139,7 @@ import (
 
 func main() {
     var number int
+
 	increaseNumber := func() error {
 		number++
 		if number == 3 {
diff --git a/docs/retry_zh-CN.md b/docs/retry_zh-CN.md
index 63321d8..07cf2c3 100644
--- a/docs/retry_zh-CN.md
+++ b/docs/retry_zh-CN.md
@@ -99,8 +99,7 @@ import (
 
 func main() {
     var number int
-    var increaseNumber retry.RetryFunc
-	increaseNumber = func() error {
+	increaseNumber := func() error {
 		number++
 		if number == 3 {
 			return nil