diff --git a/tests/DockerTest.py b/tests/DockerTest.py
index 6f3d2efbe..da4aa88fa 100644
--- a/tests/DockerTest.py
+++ b/tests/DockerTest.py
@@ -7,8 +7,8 @@ from subprocess import run
 
 class DockerTest(Test) :
 
-	def __init__(self, name, timeout, tests) :
-		super().__init__(name, "docker", timeout, tests)
+    def __init__(self, name, timeout, tests) :
+        super().__init__(name, "docker", timeout, tests)
         self.__domains = {
             r"www\.example\.com": getenv("TEST_DOMAIN1"),
             r"auth\.example\.com": getenv("TEST_DOMAIN1"),
diff --git a/tests/main.py b/tests/main.py
index 6d354d19e..dc1b41175 100755
--- a/tests/main.py
+++ b/tests/main.py
@@ -2,7 +2,8 @@
 
 from sys import path, argv, exit
 from glob import glob
-from os import getcwd, isfile
+from os import getcwd
+from os.path import isfile
 path.append(getcwd() + "/utils")
 path.append(getcwd() + "/tests")