diff --git a/src/Service.php b/src/Service.php
index 9c60ca4..0f6001b 100644
--- a/src/Service.php
+++ b/src/Service.php
@@ -261,6 +261,7 @@ private function getPathOperation(Operation $operation, $parameters)
     {
         return $this->cleanEmptyValues([
             'tags' => [$this->service->getName()],
+            'operationId' => $operation->getIdentifier(),
             'description' => $operation->getDescription(),
             'parameters' => $parameters,
             'produces' => $this->service->getRequestAcceptTypes(),
diff --git a/test/TestAsset/fixtures/swagger2.json b/test/TestAsset/fixtures/swagger2.json
index 52384b9..ffd5c92 100644
--- a/test/TestAsset/fixtures/swagger2.json
+++ b/test/TestAsset/fixtures/swagger2.json
@@ -2,7 +2,7 @@
     "swagger": "2.0",
     "info": {
         "title": "Test",
-        "version": "1.0"
+        "version": "1"
     },
     "tags": [{
             "name": "BooBaz"
@@ -283,6 +283,7 @@
         },
         "/foo-bar": {
             "get": {
+                "operationId": "listFooBar",
                 "tags": ["FooBar"],
                 "description": "Collection FooBar GET!",
                 "produces": [
@@ -759,6 +760,7 @@
         },
         "/ping": {
             "get": {
+                "operationId": "ping",
                 "tags": ["Ping"],
                 "description": "Ping the API to see uptime and network lag",
                 "produces": [
diff --git a/test/TestAsset/module-config/documentation.config.php b/test/TestAsset/module-config/documentation.config.php
index 3e862d3..9f86db9 100644
--- a/test/TestAsset/module-config/documentation.config.php
+++ b/test/TestAsset/module-config/documentation.config.php
@@ -8,6 +8,7 @@
     'Test\\V1\\Rest\\FooBar\\Controller' => [
         'collection' => [
             'GET' => [
+                'identifier' => 'listFooBar',
                 'description' => 'Collection FooBar GET!',
                 'request' => null,
                 'response' => '{
@@ -44,6 +45,7 @@
 }',
             ],
             'POST' => [
+                'identifier' => null,
                 'description' => null,
                 'request' => '{
     "goober": "Example goober value",
@@ -55,21 +57,25 @@
         ],
         'entity' => [
             'GET' => [
+                'identifier' => null,
                 'description' => null,
                 'request' => null,
                 'response' => null,
             ],
             'PATCH' => [
+                'identifier' => null,
                 'description' => null,
                 'request' => null,
                 'response' => null,
             ],
             'PUT' => [
+                'identifier' => null,
                 'description' => null,
                 'request' => null,
                 'response' => null,
             ],
             'DELETE' => [
+                'identifier' => null,
                 'description' => null,
                 'request' => null,
                 'response' => null,
@@ -83,6 +89,7 @@
     ],
     'Test\\V1\\Rpc\\Ping\\Controller' => [
         'GET' => [
+            'identifier' => 'ping',
             'description' => 'Ping the API to see uptime and network lag',
             'request' => null,
             'response' => '{"ack": 123456789}',