--- /usr/share/pyshared/apport/crashdb_impl/launchpad.py	2010-05-03 12:26:20.000000000 +0200
+++ launchpad.py.1.13.3-0ubuntu2.new	2010-05-03 12:43:44.000000000 +0200
@@ -285,10 +285,14 @@
                 report[key] = ''
             except:
                 continue
-            if ext == '.txt':
-                report[key] = attachment.read()
-            elif ext == '.gz':
-                report[key] = gzip.GzipFile(fileobj=attachment).read()#TODO: is this the best solution?
+            data = attachment.read()
+            # Check gzip header
+            if data[:2] == '\037\213':
+                datastream = StringIO(data)
+                report[key] = gzip.GzipFile(fileobj=datastream).read()#TODO: is this the best solution?
+            elif ext in ['.txt','.gz']:
+                # default for known extensions
+                report[key] = data
             else:
                 raise Exception, 'Unknown attachment type: ' + attachment.filename
         return report