diff --git a/githook-gobuild/hook.go b/githook-gobuild/hook.go
index 2545e7d..cdc52f3 100644
--- a/githook-gobuild/hook.go
+++ b/githook-gobuild/hook.go
@@ -9,7 +9,7 @@ import (
 
 func main() {
 	files := general.GetChangedGoFiles()
-	if files == nil {
+	if len(files) == 0 {
 		os.Exit(0)
 		return
 	}
diff --git a/githook-gofmt/hook.go b/githook-gofmt/hook.go
index b29cfe6..d9e3fd2 100644
--- a/githook-gofmt/hook.go
+++ b/githook-gofmt/hook.go
@@ -10,7 +10,7 @@ import (
 
 func main() {
 	files := general.GetChangedGoFiles()
-	if files == nil {
+	if len(files) == 0 {
 		os.Exit(0)
 		return
 	}
diff --git a/githook-gotest/hook.go b/githook-gotest/hook.go
index 99c683e..efca3ed 100644
--- a/githook-gotest/hook.go
+++ b/githook-gotest/hook.go
@@ -9,7 +9,7 @@ import (
 
 func main() {
 	files := general.GetChangedGoFiles()
-	if files == nil {
+	if len(files) == 0 {
 		os.Exit(0)
 		return
 	}