diff --git a/constants.py b/constants.py
index 736d286..47c50b4 100644
--- a/constants.py
+++ b/constants.py
@@ -1,3 +1,4 @@
+import os
 import json
 
 import variables as var
@@ -8,9 +9,10 @@ lang_dict = {}
 
 def load_lang(lang):
     global lang_dict, default_lang_dict
-    with open("lang/en_US.json", "r") as f:
+    root_dir = os.path.dirname(__file__)
+    with open(os.path.join(root_dir, "lang/en_US.json"), "r") as f:
         default_lang_dict = json.load(f)
-    with open(f"lang/{lang}.json", "r") as f:
+    with open(os.path.join(root_dir, f"lang/{lang}.json"), "r") as f:
         lang_dict = json.load(f)
 
 
diff --git a/interface.py b/interface.py
index 88597e5..d392f03 100644
--- a/interface.py
+++ b/interface.py
@@ -225,7 +225,8 @@ def get_all_dirs():
 @web.route("/", methods=['GET'])
 @requires_auth
 def index():
-    return open(f"templates/index.{var.language}.html", "r").read()
+    root_dir = os.path.dirname(__file__)
+    return open(os.path.join(root_dir, f"templates/index.{var.language}.html"), "r").read()
 
 
 @web.route("/playlist", methods=['GET'])