diff --git a/lib/mfrc522/source/read.py b/lib/mfrc522/source/read.py
index b1b2b2f..3b1d044 100644
--- a/lib/mfrc522/source/read.py
+++ b/lib/mfrc522/source/read.py
@@ -11,7 +11,7 @@ MIFAREReader = MFRC522.MFRC522()
 
 
 
-# Scan for cards    
+# Scan for cards
 (status,TagType) = MIFAREReader.MFRC522_Request(MIFAREReader.PICC_REQIDL)
 
 
@@ -20,20 +20,21 @@ MIFAREReader = MFRC522.MFRC522()
 
 
 # If we have the UID, continue
-if status == MIFAREReader.MI_OK:
+while status != MIFAREReader.MI_OK:
 
-    # Print UID
-    suid =        str(hex(uid[0]))[2:];
-    suid += '-' + str(hex(uid[1]))[2:];
-    suid += '-' + str(hex(uid[2]))[2:];
-    suid += '-' + str(hex(uid[3]))[2:];
+    # Scan for cards
+    (status,TagType) = MIFAREReader.MFRC522_Request(MIFAREReader.PICC_REQIDL)
 
-    print suid;
+    # Get the UID of the card
+    (status,uid) = MIFAREReader.MFRC522_Anticoll()
 
-    exit(0);
 
-else:
+# Print UID
+suid =        str(hex(uid[0]))[2:];
+suid += '-' + str(hex(uid[1]))[2:];
+suid += '-' + str(hex(uid[2]))[2:];
+suid += '-' + str(hex(uid[3]))[2:];
 
-    print 127;
-    exit(127);
+print suid;
 
+exit(0);