diff --git a/CHANGES b/CHANGES
index b371fc59..9fdd2697 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3,6 +3,7 @@ lm-sensors CHANGES file
 
 SVN HEAD
   sensors-detect: Stop calling for PIIX5 SMBus testers
+                  Improve filtering of fake DMI data
 
 3.3.1 (2011-07-21)
   isadump: Add support for word (16-bit) and long (32-bit) reads
diff --git a/prog/detect/sensors-detect b/prog/detect/sensors-detect
index 63dedd4b..b2b24151 100755
--- a/prog/detect/sensors-detect
+++ b/prog/detect/sensors-detect
@@ -2764,8 +2764,9 @@ sub initialize_dmi_data
 	);
 	# Many BIOS have broken DMI data, filter it out
 	my %fake = (
-		'System Manufacturer' => 1,
-		'System Name' => 1,
+		'system manufacturer' => 1,
+		'system product name' => 1,
+		'system name' => 1,
 	);
 	my $dmi_id_dir;
 
@@ -2794,7 +2795,7 @@ sub initialize_dmi_data
 			next;
 		}
 		$dmi{$k} =~ s/\s*$//;
-		delete $dmi{$k} if $dmi{$k} eq '' || exists $fake{$dmi{$k}};
+		delete $dmi{$k} if $dmi{$k} eq '' || exists $fake{lc($dmi{$k})};
 	}
 }