diff --git a/altsrc/yaml_file_loader.go b/altsrc/yaml_file_loader.go
index 433023d..3965fe4 100644
--- a/altsrc/yaml_file_loader.go
+++ b/altsrc/yaml_file_loader.go
@@ -11,6 +11,8 @@ import (
 	"net/http"
 	"net/url"
 	"os"
+	"runtime"
+	"strings"
 
 	"gopkg.in/urfave/cli.v1"