diff --git a/fzfaws/ec2/ec2.py b/fzfaws/ec2/ec2.py
index 726bbbc..3fe5a6f 100644
--- a/fzfaws/ec2/ec2.py
+++ b/fzfaws/ec2/ec2.py
@@ -268,13 +268,13 @@ def _name_tag_generator(
 
     def _instance_id_generator(
         self, instances: List[Dict[str, Any]]
-    ) -> Generator[Dict[str, str], None, None]:
+    ) -> Generator[Dict[str, Any], None, None]:
         """Create a generator for listing instance ids.
 
         :param instances: list of instance from boto3 response
         :type instances: List[Dict[str, Any]]
         :return: formatted dict of instance id information in generator form
-        :rtype: Generator[Dict[str,str], None, None]
+        :rtype: Generator[Dict[str,Any], None, None]
         """
         for instance in instances:
             yield {
diff --git a/fzfaws/s3/s3.py b/fzfaws/s3/s3.py
index 3d8c652..379bd2c 100644
--- a/fzfaws/s3/s3.py
+++ b/fzfaws/s3/s3.py
@@ -1,7 +1,7 @@
 """Contains the s3 wrapper class."""
+import itertools
 import os
 import re
-import itertools
 from typing import Any, Dict, Generator, List, Optional, Sequence, Tuple, Union
 
 from botocore.exceptions import ClientError
@@ -442,7 +442,7 @@ def _get_path_option(self, download: bool = False) -> str:
 
     def _version_generator(
         self, versions: List[dict], markers: List[dict], non_current: bool, delete: bool
-    ) -> Generator[Dict[str, str], None, None]:
+    ) -> Generator[Dict[str, Any], None, None]:
         """Create version generator to reduce memory usage.
 
         :param versions: list of versions from list_object_versions paginator
@@ -454,7 +454,7 @@ def _version_generator(
         :param delete: include delete marker
         :type delete: bool
         :return: formatted dict of version information in generator form
-        :rtype: Generator[Dict[str,str], None, None]
+        :rtype: Generator[Dict[str,Any], None, None]
         """
         for version in versions:
             if (non_current and not version.get("IsLatest")) or not non_current:
diff --git a/fzfaws/utils/pyfzf.py b/fzfaws/utils/pyfzf.py
index 40924eb..a359aa7 100644
--- a/fzfaws/utils/pyfzf.py
+++ b/fzfaws/utils/pyfzf.py
@@ -271,7 +271,7 @@ def _construct_fzf_cmd(self) -> List[str]:
         if os.getenv("FZFAWS_FZF_OPTS"):
             cmd_list.extend(os.getenv("FZFAWS_FZF_OPTS").split(" "))
         if os.getenv("FZFAWS_FZF_KEYS"):
-            cmd_list.append(os.getenv("FZFAWS_FZF_KEYS"))
+            cmd_list.append(os.getenv("FZFAWS_FZF_KEYS", ""))
         return cmd_list
 
     def _check_ctrl_c(self, fzf_result: str) -> None: