diff --git a/dlt/destinations/impl/filesystem/layout.py b/dlt/destinations/impl/filesystem/layout.py
index aa0e0689b9..3a5fb14255 100644
--- a/dlt/destinations/impl/filesystem/layout.py
+++ b/dlt/destinations/impl/filesystem/layout.py
@@ -105,18 +105,19 @@ def params(self) -> Optional[Dict[str, Any]]:
 
         # For each callable extra parameter
         # otherwise take it's value
-        for key, value in self.config.extra_params.items():
-            if callable(value):
-                self._params[key] = value(
-                    self.schema_name,
-                    self.table_name,
-                    self.load_id,
-                    self.file_id,
-                    self.file_format,
-                    now,
-                )
-            else:
-                self._params[key] = value
+        if self.config.extra_params:
+            for key, value in self.config.extra_params.items():
+                if callable(value):
+                    self._params[key] = value(
+                        self.schema_name,
+                        self.table_name,
+                        self.load_id,
+                        self.file_id,
+                        self.file_format,
+                        now,
+                    )
+                else:
+                    self._params[key] = value
 
         # For formatting options please see
         # https://github.com/sdispater/pendulum/blob/master/docs/docs/string_formatting.md
diff --git a/tests/load/filesystem/test_filesystem_client.py b/tests/load/filesystem/test_filesystem_client.py
index 18149a685f..e4a4daea04 100644
--- a/tests/load/filesystem/test_filesystem_client.py
+++ b/tests/load/filesystem/test_filesystem_client.py
@@ -34,6 +34,13 @@ def logger_autouse() -> None:
     "{schema_name}/{table_name}/{load_id}.{file_id}.{ext}",  # new default layout with schema
     "{schema_name}.{table_name}.{load_id}.{file_id}.{ext}",  # classic layout
     "{table_name}88{load_id}-u-{file_id}.{ext}",  # default layout with strange separators
+    # Extra layout options
+    "{table_name}/{curr_date}/{load_id}.{file_id}.{ext}{timestamp}",
+    "{table_name}/{year}/{month}/{day}/{load_id}.{file_id}.{ext}",
+    "{table_name}/{day}/{hour}/{minute}/{load_id}.{file_id}.{ext}",
+    "{table_name}/{timestamp}/{load_id}.{file_id}.{ext}",
+    "{table_name}/{dow}/{load_id}.{file_id}.{ext}",
+    "",
 )