diff --git a/lib/pact/mock_service/app.rb b/lib/pact/mock_service/app.rb
index 705763b..f590238 100644
--- a/lib/pact/mock_service/app.rb
+++ b/lib/pact/mock_service/app.rb
@@ -38,12 +38,12 @@ def shutdown
       end
 
       def setup_stub stub_pactfile_paths
-        stub_pactfile_paths.each do | pactfile_path |
+        interactions = stub_pactfile_paths.collect do | pactfile_path |
           $stdout.puts "INFO: Loading interactions from #{pactfile_path}"
           hash_interactions = JSON.parse(File.read(pactfile_path))['interactions']
-          interactions = hash_interactions.collect { | hash | Interaction.from_hash(hash) }
-          @session.set_expected_interactions interactions
-        end
+          hash_interactions.collect { | hash | Interaction.from_hash(hash) }
+        end.flatten
+        @session.set_expected_interactions interactions
       end
 
       def write_pact_if_configured
diff --git a/spec/integration/stub_cli_with_multiple_pacts_spec.rb b/spec/integration/stub_cli_with_multiple_pacts_spec.rb
new file mode 100644
index 0000000..6588631
--- /dev/null
+++ b/spec/integration/stub_cli_with_multiple_pacts_spec.rb
@@ -0,0 +1,29 @@
+require 'support/integration_spec_support'
+
+describe "The pact-stub-service command line interface with multiple pacts", mri_only: true do
+
+  include Pact::IntegrationTestSupport
+
+  PORT = 5556
+
+  before :all do
+    clear_dirs
+    @pid = start_stub_server PORT, "spec/support/pact-for-stub-1.json spec/support/pact-for-stub-2.json"
+  end
+
+  it "includes the interactions from the first pact file" do
+    response = Faraday.get "http://localhost:#{PORT}/path1"
+    puts response.body if response.status != 200
+    expect(response.status).to eq 200
+  end
+
+  it "includes the interactions from the second pact file" do
+    response = Faraday.get "http://localhost:#{PORT}/path2"
+    puts response.body if response.status != 200
+    expect(response.status).to eq 200
+  end
+
+  after :all do
+    kill_server @pid
+  end
+end
diff --git a/spec/support/pact-for-stub-1.json b/spec/support/pact-for-stub-1.json
new file mode 100644
index 0000000..578e2a0
--- /dev/null
+++ b/spec/support/pact-for-stub-1.json
@@ -0,0 +1,26 @@
+{
+  "provider": {
+    "name": "a provider"
+  },
+  "consumer": {
+    "name": "a consumer"
+  },
+  "interactions": [
+    {
+      "description": "request one",
+      "request": {
+        "method": "get",
+        "path": "/path1"
+      },
+      "response": {
+        "status": 200
+      },
+      "providerState": "state one"
+    }
+  ],
+  "metadata": {
+    "pactSpecification": {
+      "version": "2.0"
+    }
+  }
+}
diff --git a/spec/support/pact-for-stub-2.json b/spec/support/pact-for-stub-2.json
new file mode 100644
index 0000000..c74a4af
--- /dev/null
+++ b/spec/support/pact-for-stub-2.json
@@ -0,0 +1,26 @@
+{
+  "provider": {
+    "name": "a provider"
+  },
+  "consumer": {
+    "name": "a consumer"
+  },
+  "interactions": [
+    {
+      "description": "request two",
+      "request": {
+        "method": "get",
+        "path": "/path2"
+      },
+      "response": {
+        "status": 200
+      },
+      "providerState": "state two"
+    }
+  ],
+  "metadata": {
+    "pactSpecification": {
+      "version": "2.0"
+    }
+  }
+}