diff -ruN shared-mime-info-0.16/update-mime-database.c shared-mime-info-0.16-fixed/update-mime-database.c
--- shared-mime-info-0.16/update-mime-database.c	2004-12-03 21:46:28.000000000 +0100
+++ shared-mime-info-0.16-fixed/update-mime-database.c	2005-09-11 01:00:05.059442704 +0200
@@ -408,7 +408,8 @@
 		}
 	}
 
-	xmlFree(lang);
+	if (lang)
+		xmlFree(lang);
 }
 
 /* 'node' is a <mime-type> node from a source file, whose type is 'type'.