diff --git a/src/Adapter.php b/src/Adapter.php
index 70d2330..8279e91 100644
--- a/src/Adapter.php
+++ b/src/Adapter.php
@@ -80,12 +80,10 @@ public function write($path, $contents, Config $config)
 
         $response = $this->normalizeResponse($response);
 
-        if (false === $response) {
-            return false;
+        if (false !== $response) {
+            $this->setContentType($path, $contents);;
         }
 
-        $this->setContentType($path, $contents);
-
         return $response;
     }
 
@@ -107,12 +105,10 @@ public function writeStream($path, $resource, Config $config)
 
         $response = $this->normalizeResponse($response);
 
-        if (false === $response) {
-            return false;
+        if (false !== $response) {
+            $this->setContentType($path, stream_get_contents($resource));
         }
 
-        $this->setContentType($path, stream_get_contents($resource));
-
         return $response;
     }
 
@@ -134,12 +130,10 @@ public function update($path, $contents, Config $config)
 
         $response = $this->normalizeResponse($response);
 
-        if (false === $response) {
-            return false;
+        if (false !== $response) {
+            $this->setContentType($path, $contents);
         }
 
-        $this->setContentType($path, $contents);
-
         return $response;
     }
 
@@ -161,12 +155,10 @@ public function updateStream($path, $resource, Config $config)
 
         $response = $this->normalizeResponse($response);
 
-        if (false === $response) {
-            return false;
+        if (false !== $response) {
+            $this->setContentType($path, stream_get_contents($resource));
         }
 
-        $this->setContentType($path, stream_get_contents($resource));
-
         return $response;
     }