diff --git a/examples/build-package/main.tf b/examples/build-package/main.tf
index ec843b68..28828cfe 100644
--- a/examples/build-package/main.tf
+++ b/examples/build-package/main.tf
@@ -471,6 +471,15 @@ module "lambda_layer_poetry" {
       path           = "${path.module}/../fixtures/python-app-poetry"
       poetry_install = true
       poetry_tmp_dir = "${path.cwd}/../fixtures"
+      # Patterns work correctly with poetry_install - only poetry files are needed
+      # The installed dependencies will be in the layer, but source files will be excluded
+      patterns = [
+        "!ignore_please.txt", # Exclude this file
+        "!index.py",          # Exclude source code
+        "pyproject.toml",     # Include poetry config
+        "poetry.lock",        # Include lock file
+        "poetry.toml"         # Include poetry settings
+      ]
     }
   ]
   hash_extra = "extra-hash-to-prevent-conflicts-with-module.package_dir"
diff --git a/package.py b/package.py
index 3261a282..da6dc223 100644
--- a/package.py
+++ b/package.py
@@ -880,7 +880,10 @@ def commands_step(path, commands):
                                 required=True,
                                 tmp_dir=claim.get("npm_tmp_dir"),
                             )
-                    if path:
+
+                    # Only zip the source path if not using dependency managers
+                    # (pip/poetry/npm handle their own zipping)
+                    if path and not (pip_requirements or poetry_install or npm_requirements):
                         path = os.path.normpath(path)
                         step("zip", path, prefix)
                         if patterns: