diff --git a/freqtrade/commands/arguments.py b/freqtrade/commands/arguments.py
index 2fb8d3258..e66f100c0 100644
--- a/freqtrade/commands/arguments.py
+++ b/freqtrade/commands/arguments.py
@@ -37,7 +37,8 @@ ARGS_HYPEROPT = ARGS_COMMON_OPTIMIZE + ["hyperopt", "hyperopt_path",
 
 ARGS_EDGE = ARGS_COMMON_OPTIMIZE + ["stoploss_range"]
 
-ARGS_LIST_STRATEGIES = ["strategy_path", "print_one_column", "print_colorized"]
+ARGS_LIST_STRATEGIES = ["strategy_path", "print_one_column", "print_colorized",
+                        "recursive_strategy_search"]
 
 ARGS_LIST_HYPEROPTS = ["hyperopt_path", "print_one_column", "print_colorized"]
 
diff --git a/freqtrade/commands/cli_options.py b/freqtrade/commands/cli_options.py
index 095aad6c3..548a7f473 100644
--- a/freqtrade/commands/cli_options.py
+++ b/freqtrade/commands/cli_options.py
@@ -83,9 +83,9 @@ AVAILABLE_CLI_OPTIONS = {
         action='store_true',
     ),
     "recursive_strategy_search": Arg(
-        '--recursive_strategy_search',
+        '--recursive-strategy-search',
         help='Recursively search for a strategy in the strategies folder.',
-        metavar='store_true',
+        action='store_true',
     ),
     # Main options
     "strategy": Arg(
diff --git a/freqtrade/resolvers/iresolver.py b/freqtrade/resolvers/iresolver.py
index cddc8b84d..d310856d8 100644
--- a/freqtrade/resolvers/iresolver.py
+++ b/freqtrade/resolvers/iresolver.py
@@ -44,7 +44,7 @@ class IResolver:
 
     @classmethod
     def build_search_paths(cls, config: Dict[str, Any], user_subdir: Optional[str] = None,
-                           extra_dirs: Optional[List[str]] = None) -> List[Path]:
+                           extra_dirs: List[str] = []) -> List[Path]:
 
         abs_paths: List[Path] = []
         if cls.initial_search_path:
@@ -53,10 +53,9 @@ class IResolver:
         if user_subdir:
             abs_paths.insert(0, config['user_data_dir'].joinpath(user_subdir))
 
-        if extra_dirs:
-            # Add extra directory to the top of the search paths
-            for dir in extra_dirs:
-                abs_paths.insert(0, Path(dir).resolve())
+        # Add extra directory to the top of the search paths
+        for dir in extra_dirs:
+            abs_paths.insert(0, Path(dir).resolve())
 
         return abs_paths