diff --git a/monkey/monkey_island/cc/setup/island_config_options.py b/monkey/monkey_island/cc/setup/island_config_options.py
index e8a0f7016..664159944 100644
--- a/monkey/monkey_island/cc/setup/island_config_options.py
+++ b/monkey/monkey_island/cc/setup/island_config_options.py
@@ -13,8 +13,8 @@ from monkey_island.cc.server_utils.consts import (
 
 class IslandConfigOptions:
     def __init__(self, config_contents: dict):
-        self.data_dir = os.path.expandvars(
-            os.path.expanduser(config_contents.get("data_dir", DEFAULT_DATA_DIR))
+        self.data_dir = IslandConfigOptions._expand_path(
+            config_contents.get("data_dir", DEFAULT_DATA_DIR)
         )
 
         self.log_level = config_contents.get("log_level", DEFAULT_LOG_LEVEL)
@@ -23,9 +23,13 @@ class IslandConfigOptions:
             "mongodb", {"start_mongodb": DEFAULT_START_MONGO_DB}
         ).get("start_mongodb", DEFAULT_START_MONGO_DB)
 
-        self.crt_path = os.path.expandvars(
-            os.path.expanduser(config_contents.get("cert_path", DEFAULT_CRT_PATH))
+        self.crt_path = IslandConfigOptions._expand_path(
+            config_contents.get("cert_path", DEFAULT_CRT_PATH)
         )
-        self.key_path = os.path.expandvars(
-            os.path.expanduser(config_contents.get("key_path", DEFAULT_KEY_PATH))
+        self.key_path = IslandConfigOptions._expand_path(
+            config_contents.get("key_path", DEFAULT_KEY_PATH)
         )
+
+    @staticmethod
+    def _expand_path(path: str) -> str:
+        return os.path.expandvars(os.path.expanduser(path))