diff --git a/test/functional/test_framework/util.py b/test/functional/test_framework/util.py
index 3a82496dd17d0..6d0ebadb6d724 100644
--- a/test/functional/test_framework/util.py
+++ b/test/functional/test_framework/util.py
@@ -416,13 +416,13 @@ def get_temp_default_datadir(temp_dir: pathlib.Path) -> tuple[dict, pathlib.Path
     temp_dir, as well as the complete path it would return."""
     if platform.system() == "Windows":
         env = dict(APPDATA=str(temp_dir))
-        datadir = temp_dir / "Bitcoin"
+        datadir = temp_dir / "Navcoin"
     else:
         env = dict(HOME=str(temp_dir))
         if platform.system() == "Darwin":
-            datadir = temp_dir / "Library/Application Support/Bitcoin"
+            datadir = temp_dir / "Library/Application Support/Navcoin"
         else:
-            datadir = temp_dir / ".bitcoin"
+            datadir = temp_dir / ".navcoin"
     return env, datadir