diff --git a/lib/Predis.php b/lib/Predis.php
index e3c47365..8ef0dc61 100644
--- a/lib/Predis.php
+++ b/lib/Predis.php
@@ -1449,7 +1449,7 @@ class TcpConnection extends Connection implements IConnectionSingle {
         $value  = '';
         do {
             $chunk = fgets($socket);
-            if ($chunk === false || strlen($chunk) == 0) {
+            if ($chunk === false || $chunk === '') {
                 $this->onCommunicationException('Error while reading line from the server');
             }
             $value .= $chunk;