diff --git a/tools/goctl/api/gogen/genmain.go b/tools/goctl/api/gogen/genmain.go
index 21453c54c..154a7dccf 100644
--- a/tools/goctl/api/gogen/genmain.go
+++ b/tools/goctl/api/gogen/genmain.go
@@ -43,7 +43,7 @@ func genMain(dir, rootPkg string, cfg *config.Config, api *spec.ApiSpec) error {
 }
 
 func genMainImports(parentPkg string) string {
-	imports := make([]string, 0, 5)
+	var imports []string
 	imports = append(imports, fmt.Sprintf("\"%s\"", pathx.JoinPackages(parentPkg, configDir)))
 	imports = append(imports, fmt.Sprintf("\"%s\"", pathx.JoinPackages(parentPkg, handlerDir)))
 	imports = append(imports, fmt.Sprintf("\"%s\"\n", pathx.JoinPackages(parentPkg, contextDir)))
diff --git a/tools/goctl/model/sql/gen/keys.go b/tools/goctl/model/sql/gen/keys.go
index b752c95c4..8e4920079 100644
--- a/tools/goctl/model/sql/gen/keys.go
+++ b/tools/goctl/model/sql/gen/keys.go
@@ -39,8 +39,8 @@ type Join []string
 
 func genCacheKeys(prefix string, table parser.Table) (Key, []Key) {
 	var primaryKey Key
-	uniqueKey := make([]Key, 0, len(table.UniqueIndex))
 	primaryKey = genCacheKey(prefix, table.Db, table.Name, []*parser.Field{&table.PrimaryKey.Field})
+	uniqueKey := make([]Key, 0, len(table.UniqueIndex))
 	for _, each := range table.UniqueIndex {
 		uniqueKey = append(uniqueKey, genCacheKey(prefix, table.Db, table.Name, each))
 	}