diff --git a/samtools.cabal b/samtools.cabal
--- a/samtools.cabal
+++ b/samtools.cabal
@@ -1,5 +1,5 @@
 Name:                samtools
-Version:             0.2.4
+Version:             0.2.4.1
 Synopsis:            Binding to the C samtools library
 Description:         Binding to the C samtools library, which reads and
                      writes SAM format alignments, both binary and tab-
diff --git a/src/Bio/SamTools/Bam.hs b/src/Bio/SamTools/Bam.hs
--- a/src/Bio/SamTools/Bam.hs
+++ b/src/Bio/SamTools/Bam.hs
@@ -22,7 +22,7 @@
   , Header, nTargets, targetSeqList, targetSeq, targetSeqName, targetSeqLen, lookupTarget
   
   -- * SAM/BAM format alignments
-  , Bam1
+  , Bam1, header
   , targetID, targetName, targetLen, position
   , isPaired, isProperPair, isUnmap, isMateUnmap, isReverse, isMateReverse
   , isRead1, isRead2, isSecondary, isQCFail, isDup