diff --git a/lib/Predis/PubSub/PubSubContext.php b/lib/Predis/PubSub/PubSubContext.php
index 45f01423..6eedabd6 100644
--- a/lib/Predis/PubSub/PubSubContext.php
+++ b/lib/Predis/PubSub/PubSubContext.php
@@ -30,9 +30,9 @@ class PubSubContext implements \Iterator
     const MESSAGE      = 'message';
     const PMESSAGE     = 'pmessage';
 
-    const STATUS_VALID       = 0x0001;
-    const STATUS_SUBSCRIBED  = 0x0010;
-    const STATUS_PSUBSCRIBED = 0x0100;
+    const STATUS_VALID       = 1;	// 0b0001
+    const STATUS_SUBSCRIBED  = 2;	// 0b0010
+    const STATUS_PSUBSCRIBED = 4;	// 0b0100
 
     private $client;
     private $position;
@@ -245,7 +245,7 @@ class PubSubContext implements \Iterator
      */
     private function invalidate()
     {
-        $this->statusFlags = 0x0000;
+        $this->statusFlags = 0;	// 0b0000;
     }
 
     /**
diff --git a/lib/Predis/Transaction/MultiExecContext.php b/lib/Predis/Transaction/MultiExecContext.php
index dc7d55df..df8db57f 100644
--- a/lib/Predis/Transaction/MultiExecContext.php
+++ b/lib/Predis/Transaction/MultiExecContext.php
@@ -32,12 +32,12 @@ use Predis\Protocol\ProtocolException;
  */
 class MultiExecContext implements BasicClientInterface, ExecutableContextInterface
 {
-    const STATE_RESET       = 0x00000;
-    const STATE_INITIALIZED = 0x00001;
-    const STATE_INSIDEBLOCK = 0x00010;
-    const STATE_DISCARDED   = 0x00100;
-    const STATE_CAS         = 0x01000;
-    const STATE_WATCH       = 0x10000;
+    const STATE_RESET       = 0;	// 0b00000
+    const STATE_INITIALIZED = 1;	// 0b00001
+    const STATE_INSIDEBLOCK = 2;	// 0b00010
+    const STATE_DISCARDED   = 4;	// 0b00100
+    const STATE_CAS         = 8;	// 0b01000
+    const STATE_WATCH       = 16;	// 0b10000
 
     private $state;
     private $canWatch;