diff --git a/dwarf-el.cabal b/dwarf-el.cabal
--- a/dwarf-el.cabal
+++ b/dwarf-el.cabal
@@ -1,5 +1,5 @@
 Name:          dwarf-el
-Version:       0.2
+Version:       0.2.1
 License:       BSD3
 License-file:  LICENSE
 Category:      Data
diff --git a/src/Data/Dwarf/AT.hs b/src/Data/Dwarf/AT.hs
--- a/src/Data/Dwarf/AT.hs
+++ b/src/Data/Dwarf/AT.hs
@@ -101,6 +101,12 @@
     | DW_AT_elemental            -- ^ flag
     | DW_AT_return                 -- ^ flag
     | DW_AT_recursive            -- ^ flag
+    | DW_AT_signature
+    | DW_AT_main_subprogram
+    | DW_AT_data_bit_offset
+    | DW_AT_const_expr
+    | DW_AT_enum_class
+    | DW_AT_linkage_name
     | DW_AT_user Word64          -- ^ user extension
     deriving (Eq, Ord, Read, Show)
 
@@ -191,5 +197,11 @@
 dw_at 0x66 = DW_AT_elemental
 dw_at 0x67 = DW_AT_return
 dw_at 0x68 = DW_AT_recursive
+dw_at 0x69 = DW_AT_signature
+dw_at 0x6a = DW_AT_main_subprogram
+dw_at 0x6b = DW_AT_data_bit_offset
+dw_at 0x6c = DW_AT_const_expr
+dw_at 0x6d = DW_AT_enum_class
+dw_at 0x6e = DW_AT_linkage_name
 dw_at n | 0x2000 <= n && n <= 0x3fff = DW_AT_user n
 dw_at n = error $ "Unrecognized DW_AT " ++ show n
diff --git a/src/Data/Dwarf/Utils.hs b/src/Data/Dwarf/Utils.hs
--- a/src/Data/Dwarf/Utils.hs
+++ b/src/Data/Dwarf/Utils.hs
@@ -2,7 +2,7 @@
 
 import Control.Applicative (Applicative(..), (<$>), (*>))
 import Data.Binary.Get (getByteString, getWord8, Get, runGet)
-import Data.Bits (Bits, (.|.), shiftL, clearBit, testBit)
+import Data.Bits ((.|.), shiftL, clearBit, testBit)
 import Data.Int (Int64)
 import Data.Word (Word64)
 import qualified Data.Binary.Get as Get