diff --git a/CHANGES b/CHANGES
index 43070907..7c8f0430 100644
--- a/CHANGES
+++ b/CHANGES
@@ -6,6 +6,7 @@ SVN-HEAD
   sensors.conf.default: Encourage user to not modify this file
   sensors-detect: Refer to tmp401 driver if TMP411 is detected
                   Clean up the discovery of i2c adapters
+                  Report unsupported Access Bus adapters
 
 3.1.1 (2009-06-21)
   isadump: Use geteuid instead of getuid so that setuid bit works
diff --git a/prog/detect/sensors-detect b/prog/detect/sensors-detect
index 4419d0f7..54ba6c9e 100755
--- a/prog/detect/sensors-detect
+++ b/prog/detect/sensors-detect
@@ -2519,7 +2519,8 @@ sub adapter_pci_detection
 		$device = $pci_list{$key};
 		$smbus{$key}++
 			if exists $device->{class} &&
-			   $device->{class} == 0x0c05; # SMBus
+			   ($device->{class} == 0x0c01 ||	# Access Bus
+			    $device->{class} == 0x0c05);	# SMBus
 	}
 
 	# Loop over the known I2C/SMBus adapters