diff --git a/src/ZipkinBundle/Middleware.php b/src/ZipkinBundle/Middleware.php
index 8e5359a..6705c89 100644
--- a/src/ZipkinBundle/Middleware.php
+++ b/src/ZipkinBundle/Middleware.php
@@ -83,6 +83,7 @@ public function onKernelRequest(GetResponseEvent $event)
         $span->tag(Tags\HTTP_HOST, $request->getHost());
         $span->tag(Tags\HTTP_METHOD, $request->getMethod());
         $span->tag(Tags\HTTP_PATH, $request->getPathInfo());
+        $span->tag(Tags\LOCAL_COMPONENT, 'symfony');
         foreach ($this->tags as $key => $value) {
             $span->tag($key, $value);
         }
diff --git a/tests/Integration/build.sh b/tests/Integration/build.sh
index be9af5a..f6b89b8 100755
--- a/tests/Integration/build.sh
+++ b/tests/Integration/build.sh
@@ -4,11 +4,12 @@ APP_FOLDER=test-app
 SYMFONY_VERSION=${1:-dev-master}
 LIBRARY_BRANCH=dev-${2:-master}
 SAMPLER=${3:-default}
+COMPOSER="$(which php) -d memory_limit=-1 /vendor/bin/composer"
 
 # Deletes old executions of the build
 rm -rf ${APP_FOLDER}
 
-composer create-project symfony/website-skeleton:${SYMFONY_VERSION} ${APP_FOLDER} || exit 1
+${COMPOSER} create-project symfony/website-skeleton:${SYMFONY_VERSION} ${APP_FOLDER} || exit 1
 cd ${APP_FOLDER}
 
 # Includes zipkin-instrumentation-symfony to the composer.json of the app
@@ -22,7 +23,7 @@ cat composer.json.dist \
 
 rm composer.lock
 
-composer require symfony/web-server-bundle --dev
+${COMPOSER} require symfony/web-server-bundle --dev
 
 # includes configuration files to run the middleware in the app
 cp ../tracing.${SAMPLER}.yaml ./config/tracing.yaml
diff --git a/tests/Unit/MiddlewareTest.php b/tests/Unit/MiddlewareTest.php
index 8182933..82a9409 100644
--- a/tests/Unit/MiddlewareTest.php
+++ b/tests/Unit/MiddlewareTest.php
@@ -24,6 +24,7 @@ class MiddlewareTest extends PHPUnit_Framework_TestCase
     const TAG_KEY = 'key';
     const TAG_VALUE = 'value';
     const EXCEPTION_MESSAGE = 'message';
+    const LOCAL_COMPONENT = 'symfony';
     
     public function testSpanIsNotCreatedOnNonMasterRequest()
     {
@@ -71,6 +72,7 @@ public function testSpanIsCreatedOnKernelRequest()
                 'http.host' => self::HTTP_HOST,
                 'http.method' => self::HTTP_METHOD,
                 'http.path' => self::HTTP_PATH,
+                'lc' => self::LOCAL_COMPONENT,
                 self::TAG_KEY => self::TAG_VALUE,
             ]
         ], $spans[0]->toArray());
@@ -122,6 +124,7 @@ public function testSpanIsTaggedOnKernelException()
         $this->assertArraySubset([
             'tags' => [
                 'error' => self::EXCEPTION_MESSAGE,
+                'lc' => self::LOCAL_COMPONENT,
             ]
         ], $spans[0]->toArray());
     }
@@ -192,6 +195,7 @@ public function testSpanIsTaggedOnKernelTerminate($responseStatusCode)
             'http.method' => self::HTTP_METHOD,
             'http.path' => self::HTTP_PATH,
             'http.status_code' => (string) $responseStatusCode,
+            'lc' => self::LOCAL_COMPONENT,
         ];
 
         if ($responseStatusCode > 399) {