diff --git a/wicd.py b/wicd.py
index 7bb4f08..eb68802 100755
--- a/wicd.py
+++ b/wicd.py
@@ -245,20 +245,19 @@ class TrayIcon:
             """ Determines what network activity state we are in. """
             transmitting = False
             receiving = False
-            rcvbytes = None
-            sndbytes = None
-    
-            dev_file = open('/proc/net/dev','r')
-            device_data = dev_file.read().split('\n')
-            dev_file.close()
-
-            # Get the data for the wireless interface.
-            for line in device_data:
-                if daemon.GetWirelessInterface() in line:
-                    line = line.replace(':', ' ').split()
-                    rcvbytes = int(line[1])
-                    sndbytes = int(line[9])
+                    
+            dev_dir = '/sys/class/net/'
+            wiface = daemon.GetWirelessInterface()
+            for fldr in os.listdir(dev_dir):
+                if fldr == wiface:
+                    dev_dir = dev_dir + fldr + "/statistics/"
                     break
+            try:
+                rcvbytes = int(open(dev_dir + "rx_bytes", "r").read().strip())
+                sndbytes = int(open(dev_dir + "tx_bytes", "r").read().strip())
+            except IOError:
+                sndbytes = None
+                rcvbytes = None
                 
             if not rcvbytes or not sndbytes:
                 return 'idle-'
diff --git a/wnettools.py b/wnettools.py
index 6b6096e..238e944 100644
--- a/wnettools.py
+++ b/wnettools.py
@@ -133,26 +133,14 @@ def GetWirelessInterfaces():
     return iface
 
 def _fast_get_wifi_interfaces():
-    """ Tries to get a wireless interface by parsing /proc/net/wireless. """
-    device = re.compile('[a-z]{3,4}[0-9]') 
+    """ Tries to get a wireless interface using /sys/class/net. """
+    dev_dir = '/sys/class/net/'    
     ifnames = []
     
-    try:
-        f = open('/proc/net/wireless', 'r')
-    except IOError:
-        return None
-    data = f.readlines()
-    f.close()
-    for line in data:
-        try:
-            ifnames.append(device.search(line).group())
-        except AttributeError:
-            pass 
+    ifnames = [iface for iface in os.listdir(dev_dir) if 'wireless' \
+               in os.listdir(dev_dir + iface)]
     
-    if ifnames:
-        return ifnames[0]
-    else:
-        return None
+    return bool(ifnames) and ifnames[0] or None
     
 def get_iw_ioctl_result(iface, call):
     """ Makes the given ioctl call and returns the results.