diff --git a/aws_lambda_builders/workflows/ruby_bundler/workflow.py b/aws_lambda_builders/workflows/ruby_bundler/workflow.py
index 826d51fed..013c67dd7 100644
--- a/aws_lambda_builders/workflows/ruby_bundler/workflow.py
+++ b/aws_lambda_builders/workflows/ruby_bundler/workflow.py
@@ -21,7 +21,7 @@ class RubyBundlerWorkflow(BaseWorkflow):
                             dependency_manager="bundler",
                             application_framework=None)
 
-    EXCLUDED_FILES = (".aws-sam")
+    EXCLUDED_FILES = (".aws-sam", ".git")
 
     def __init__(self,
                  source_dir,
diff --git a/tests/integration/workflows/ruby_bundler/test_ruby.py b/tests/integration/workflows/ruby_bundler/test_ruby.py
index b286cc8c8..5ed47e7f3 100644
--- a/tests/integration/workflows/ruby_bundler/test_ruby.py
+++ b/tests/integration/workflows/ruby_bundler/test_ruby.py
@@ -46,6 +46,15 @@ def test_builds_project_with_dependencies(self):
         output_files = set(os.listdir(self.artifacts_dir))
         self.assertEquals(expected_files, output_files)
 
+    def test_builds_project_and_ignores_excluded_files(self):
+        source_dir = os.path.join(self.TEST_DATA_FOLDER, "excluded-files")
+        self.builder.build(source_dir, self.artifacts_dir, self.scratch_dir,
+                           os.path.join(source_dir, "Gemfile"),
+                           runtime=self.runtime)
+        expected_files = {"handler.rb", "Gemfile", "Gemfile.lock", ".bundle", "vendor"}
+        output_files = set(os.listdir(self.artifacts_dir))
+        self.assertEquals(expected_files, output_files)
+
     def test_fails_if_bundler_cannot_resolve_dependencies(self):
         source_dir = os.path.join(self.TEST_DATA_FOLDER, "broken-deps")
         with self.assertRaises(WorkflowFailedError) as ctx:
diff --git a/tests/integration/workflows/ruby_bundler/testdata/excluded-files/.aws-sam/.keep b/tests/integration/workflows/ruby_bundler/testdata/excluded-files/.aws-sam/.keep
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/integration/workflows/ruby_bundler/testdata/excluded-files/Gemfile b/tests/integration/workflows/ruby_bundler/testdata/excluded-files/Gemfile
new file mode 100644
index 000000000..5b48b7797
--- /dev/null
+++ b/tests/integration/workflows/ruby_bundler/testdata/excluded-files/Gemfile
@@ -0,0 +1,4 @@
+source 'https://rubygems.org'
+
+# This shouldn't even need to exist, that's a pending feature request.
+# If no dependencies, leave blank.
diff --git a/tests/integration/workflows/ruby_bundler/testdata/excluded-files/handler.rb b/tests/integration/workflows/ruby_bundler/testdata/excluded-files/handler.rb
new file mode 100644
index 000000000..0093e4da1
--- /dev/null
+++ b/tests/integration/workflows/ruby_bundler/testdata/excluded-files/handler.rb
@@ -0,0 +1,3 @@
+def handle(event:,context:)
+  "Hello!"
+end