diff --git a/freqtrade/resolvers/iresolver.py b/freqtrade/resolvers/iresolver.py
index 56376baa4..5c4ba1568 100644
--- a/freqtrade/resolvers/iresolver.py
+++ b/freqtrade/resolvers/iresolver.py
@@ -204,8 +204,8 @@ class IResolver:
     def _build_rel_location(cls, directory: Path, entry: Path) -> str:
 
         builtin = cls.initial_search_path == directory
-        return f"<builtin>/{entry.relative_to(directory)}" if builtin else entry.relative_to(
-                    directory)
+        return f"<builtin>/{entry.relative_to(directory)}" if builtin else str(
+            entry.relative_to(directory))
 
     @classmethod
     def _search_all_objects(
diff --git a/freqtrade/resolvers/strategy_resolver.py b/freqtrade/resolvers/strategy_resolver.py
index a1eb3d190..ae27df3c5 100644
--- a/freqtrade/resolvers/strategy_resolver.py
+++ b/freqtrade/resolvers/strategy_resolver.py
@@ -272,7 +272,7 @@ class StrategyResolver(IResolver):
     def build_search_paths(cls, config: Config, user_subdir: Optional[str] = None,
                            extra_dirs: List[str] = []) -> List[Path]:
 
-        if 'strategy_path' in config:
+        if 'strategy_path' in config and config['strategy_path'] not in extra_dirs:
             extra_dirs = [config['strategy_path']] + extra_dirs
         return super().build_search_paths(config, user_subdir, extra_dirs)
 
diff --git a/freqtrade/rpc/api_server/api_v1.py b/freqtrade/rpc/api_server/api_v1.py
index 0e6f9500a..c0c9b8f57 100644
--- a/freqtrade/rpc/api_server/api_v1.py
+++ b/freqtrade/rpc/api_server/api_v1.py
@@ -1,13 +1,11 @@
 import logging
 from copy import deepcopy
-from pathlib import Path
 from typing import List, Optional
 
 from fastapi import APIRouter, Depends, Query
 from fastapi.exceptions import HTTPException
 
 from freqtrade import __version__
-from freqtrade.constants import USERPATH_STRATEGIES
 from freqtrade.data.history import get_datahandler
 from freqtrade.enums import CandleType, TradingMode
 from freqtrade.exceptions import OperationalException
diff --git a/tests/rpc/test_rpc_apiserver.py b/tests/rpc/test_rpc_apiserver.py
index 684f68819..f0d74698e 100644
--- a/tests/rpc/test_rpc_apiserver.py
+++ b/tests/rpc/test_rpc_apiserver.py
@@ -1443,8 +1443,9 @@ def test_api_plot_config(botclient):
     assert isinstance(rc.json()['subplots'], dict)
 
 
-def test_api_strategies(botclient):
+def test_api_strategies(botclient, tmpdir):
     ftbot, client = botclient
+    ftbot.config['user_data_dir'] = Path(tmpdir)
 
     rc = client_get(client, f"{BASE_URI}/strategies")
 
diff --git a/tests/strategy/test_strategy_loading.py b/tests/strategy/test_strategy_loading.py
index 8b9ae658b..ae5a4024c 100644
--- a/tests/strategy/test_strategy_loading.py
+++ b/tests/strategy/test_strategy_loading.py
@@ -77,10 +77,9 @@ def test_load_strategy_base64(dataframe_1m, caplog, default_conf):
 
 
 def test_load_strategy_invalid_directory(caplog, default_conf):
-    default_conf['strategy'] = 'StrategyTestV3'
     extra_dir = Path.cwd() / 'some/path'
-    with pytest.raises(OperationalException):
-        StrategyResolver._load_strategy(CURRENT_TEST_STRATEGY, config=default_conf,
+    with pytest.raises(OperationalException, match=r"Impossible to load Strategy.*"):
+        StrategyResolver._load_strategy('StrategyTestV333', config=default_conf,
                                         extra_dir=extra_dir)
 
     assert log_has_re(r'Path .*' + r'some.*path.*' + r'.* does not exist', caplog)
@@ -102,8 +101,8 @@ def test_load_strategy_noname(default_conf):
         StrategyResolver.load_strategy(default_conf)
 
 
-@pytest.mark.filterwarnings("ignore:deprecated")
-@pytest.mark.parametrize('strategy_name', ['StrategyTestV2'])
+@ pytest.mark.filterwarnings("ignore:deprecated")
+@ pytest.mark.parametrize('strategy_name', ['StrategyTestV2'])
 def test_strategy_pre_v3(dataframe_1m, default_conf, strategy_name):
     default_conf.update({'strategy': strategy_name})
 
@@ -349,7 +348,7 @@ def test_strategy_override_use_exit_profit_only(caplog, default_conf):
     assert log_has("Override strategy 'exit_profit_only' with value in config file: True.", caplog)
 
 
-@pytest.mark.filterwarnings("ignore:deprecated")
+@ pytest.mark.filterwarnings("ignore:deprecated")
 def test_missing_implements(default_conf, caplog):
 
     default_location = Path(__file__).parent / "strats"