--- freedesktop.org.xml.in	2009-02-09 16:10:32.000000000 +0100
+++ ilbm-freedesktop.org.xml.in	2009-02-11 21:02:54.000000000 +0100
@@ -3652,15 +3652,20 @@
       <match type="string" value="icns" offset="0"/>
     </magic>
   </mime-type>
-  <mime-type type="image/x-iff">
-    <_comment>IFF image</_comment>
-    <glob pattern="*.iff"/>
-  </mime-type>
   <mime-type type="image/x-ilbm">
     <_comment>ILBM image</_comment>
-    <acronym>ILBM image</acronym>
+    <acronym>ILBM</acronym>
     <expanded-acronym>InterLeaved BitMap</expanded-acronym>
+    <magic priority="80">
+      <match value="FORM" type="string" offset="0">
+        <match value="ILBM" type="string" offset="8"/>
+        <match value="PBM " type="string" offset="8"/>
+      </match>
+    </magic>
+    <glob pattern="*.iff"/>
     <glob pattern="*.ilbm"/>
+    <glob pattern="*.lbm"/>
+    <alias type="image/x-iff"/>
   </mime-type>
   <mime-type type="image/x-jng">
     <_comment>JNG image</_comment>