diff --git a/src/Caching/MemcachedServiceProvider.php b/src/Caching/MemcachedServiceProvider.php
index 15a8e5f..91cb984 100644
--- a/src/Caching/MemcachedServiceProvider.php
+++ b/src/Caching/MemcachedServiceProvider.php
@@ -109,7 +109,7 @@ public function register(Container $app)
      */
     private function getLogger(Container $app, $name)
     {
-        if (!isset($app[$name.'.enable_log']) || !interface_exists('Psr\Log\LoggerInterface')) {
+        if (!isset($app[$name.'.enable_log']) || true !== $app[$name.'.enable_log'] || !interface_exists('Psr\Log\LoggerInterface')) {
             return null;
         }
 
diff --git a/tests/Caching/Tests/MemcachedServiceProviderTest.php b/tests/Caching/Tests/MemcachedServiceProviderTest.php
index bc6923c..e253b65 100644
--- a/tests/Caching/Tests/MemcachedServiceProviderTest.php
+++ b/tests/Caching/Tests/MemcachedServiceProviderTest.php
@@ -165,15 +165,24 @@ public function provideLoggerByConfiguration()
         return [
             // add logger to $app['logger'] before testing
             [true, false, ['memcache.client' => 'mock']],
-            [true, true, ['memcache.client' => 'mock', 'memcache.enable_log' => false]],
+            [true, false, ['memcache.client' => 'mock', 'memcache.enable_log' => false]],
             [true, true, ['memcache.client' => 'mock', 'memcache.enable_log' => true]],
             [true, false, ['test.client' => 'mock', 'test.logger' => new TestLogger()], 'test'],
 
             // do not add logger to $app['logger'] before testing
             [false, false, ['memcache.client' => 'mock', 'memcache.logger' => new TestLogger()]],
             [
-                false,
                 true,
+                true,
+                [
+                    'memcache.client' => 'mock',
+                    'memcache.enable_log' => true,
+                    'memcache.logger' => new TestLogger(),
+                ],
+            ],
+            [
+                false,
+                false,
                 [
                     'memcache.client' => 'mock',
                     'memcache.enable_log' => false,
@@ -190,15 +199,6 @@ public function provideLoggerByConfiguration()
                 ],
                 'test',
             ],
-            [
-                true,
-                true,
-                [
-                    'memcache.client' => 'mock',
-                    'memcache.enable_log' => true,
-                    'memcache.logger' => new TestLogger(),
-                ],
-            ],
             [
                 false,
                 false,