diff --git a/hack/docker/gen/main.go b/hack/docker/gen/main.go
index 8549ff4c150..88c4a4a9134 100644
--- a/hack/docker/gen/main.go
+++ b/hack/docker/gen/main.go
@@ -34,8 +34,8 @@ import (
 	"github.com/vdaas/vald/internal/log"
 	"github.com/vdaas/vald/internal/safety"
 	"github.com/vdaas/vald/internal/strings"
-	"github.com/vdaas/vald/internal/sync/errgroup"
 	"github.com/vdaas/vald/internal/sync"
+	"github.com/vdaas/vald/internal/sync/errgroup"
 	"golang.org/x/tools/go/packages"
 	"gopkg.in/yaml.v2"
 )
@@ -914,7 +914,7 @@ func main() {
 					}
 					slices.Sort(pkgs)
 					pkgs = slices.Compact(pkgs)
-					for i, pkg := range pkgs{
+					for i, pkg := range pkgs {
 						pkg = file.Join(pkg, "/*.go")
 						_, right, ok := strings.Cut(pkg, "/vdaas/vald/")
 						if ok && right != "" {
@@ -1171,8 +1171,8 @@ type PackageNode struct {
 }
 
 // ToSlice traverses the dependency tree and returns all dependencies as a slice.
-func (n PackageNode) ToSlice() (pkgs []string){
-	pkgs = make([]string, 0, len(n.Imports) + 1)
+func (n PackageNode) ToSlice() (pkgs []string) {
+	pkgs = make([]string, 0, len(n.Imports)+1)
 	if n.Name != "command-line-arguments" {
 		pkgs = append(pkgs, n.Name)
 	}
@@ -1190,7 +1190,7 @@ func (n PackageNode) String() string {
 func (n PackageNode) string(depth int) (tree string) {
 	tree = fmt.Sprintf("%s- %s\n", strings.Repeat("  ", depth), n.Name)
 	for _, node := range n.Imports {
-		tree += node.string(depth+1)
+		tree += node.string(depth + 1)
 	}
 	return tree
 }
@@ -1208,9 +1208,9 @@ func processDependencies(pkg *packages.Package, nodes map[string]*PackageNode, m
 	nodes[pkg.PkgPath] = node
 	checkList[pkg.PkgPath] = node
 	for _, imp := range pkg.Imports {
-	if !strings.Contains(imp.PkgPath, "vdaas/vald") {
+		if !strings.Contains(imp.PkgPath, "vdaas/vald") {
 			continue
-	}
+		}
 		if child, exists := checkList[imp.PkgPath]; exists {
 			node.Imports = append(node.Imports, child)
 			continue