diff --git a/stack_orchestrator/util.py b/stack_orchestrator/util.py
index 7aa5e15e..36c6bfd0 100644
--- a/stack_orchestrator/util.py
+++ b/stack_orchestrator/util.py
@@ -19,7 +19,7 @@ import sys
 import ruamel.yaml
 from pathlib import Path
 from dotenv import dotenv_values
-from typing import Mapping
+from typing import Mapping, Set, List
 
 
 def include_exclude_check(s, include, exclude):
@@ -81,17 +81,17 @@ def get_pod_list(parsed_stack):
     return result
 
 
-def get_plugin_code_paths(stack):
+def get_plugin_code_paths(stack) -> List[Path]:
     parsed_stack = get_parsed_stack_config(stack)
     pods = parsed_stack["pods"]
-    result = []
+    result: Set[Path] = set()
     for pod in pods:
         if type(pod) is str:
-            result.append(get_stack_file_path(stack).parent)
+            result.add(get_stack_file_path(stack).parent)
         else:
             pod_root_dir = os.path.join(get_dev_root_path(None), pod["repository"].split("/")[-1], pod["path"])
-            result.append(Path(os.path.join(pod_root_dir, "stack")))
-    return result
+            result.add(Path(os.path.join(pod_root_dir, "stack")))
+    return list(result)
 
 
 def get_pod_file_path(parsed_stack, pod_name: str):