diff --git a/Bindings/Libgit2/Odb.hsc b/Bindings/Libgit2/Odb.hsc
--- a/Bindings/Libgit2/Odb.hsc
+++ b/Bindings/Libgit2/Odb.hsc
@@ -19,7 +19,7 @@
 #ccall git_odb_read , Ptr (Ptr <git_odb_object>) -> Ptr <git_odb> -> Ptr <git_oid> -> IO (CInt)
 #ccall git_odb_read_prefix , Ptr (Ptr <git_odb_object>) -> Ptr <git_odb> -> Ptr <git_oid> -> CSize -> IO (CInt)
 #ccall git_odb_read_header , Ptr CSize -> Ptr <git_otype> -> Ptr <git_odb> -> Ptr <git_oid> -> IO (CInt)
-#ccall git_odb_exists , Ptr <git_odb> -> Ptr <git_oid> -> IO (CInt)
+#ccall git_odb_exists , Ptr <git_odb> -> Ptr <git_oid> -> CInt -> IO (CInt)
 #ccall git_odb_refresh , Ptr <git_odb> -> IO (CInt)
 #ccall git_odb_foreach , Ptr <git_odb> -> <git_odb_foreach_cb> -> Ptr () -> IO (CInt)
 #ccall git_odb_write , Ptr <git_oid> -> Ptr <git_odb> -> Ptr () -> CSize -> <git_otype> -> IO (CInt)
diff --git a/Bindings/Libgit2/OdbBackend.hsc b/Bindings/Libgit2/OdbBackend.hsc
--- a/Bindings/Libgit2/OdbBackend.hsc
+++ b/Bindings/Libgit2/OdbBackend.hsc
@@ -47,7 +47,7 @@
     int (* readstream)(struct git_odb_stream * *,
                        struct git_odb_backend *,
                        const git_oid *);
-    int (* exists)(struct git_odb_backend *, const git_oid *);
+    int (* exists)(struct git_odb_backend *, const git_oid *, bool);
     int (* refresh)(struct git_odb_backend *);
     int (* foreach)(struct git_odb_backend *,
                     git_odb_foreach_cb cb,
@@ -64,7 +64,7 @@
 #callback git_odb_backend_write_callback , Ptr <git_oid> -> Ptr <git_odb_backend> -> Ptr () -> CSize -> <git_otype> -> IO CInt
 #callback git_odb_backend_writestream_callback , Ptr (Ptr <git_odb_stream>) -> Ptr <git_odb_backend> -> CSize -> <git_otype> -> IO CInt
 #callback git_odb_backend_readstream_callback , Ptr (Ptr <git_odb_stream>) -> Ptr <git_odb_backend> -> Ptr <git_oid> -> IO CInt
-#callback git_odb_backend_exists_callback , Ptr <git_odb_backend> -> Ptr <git_oid> -> IO CInt
+#callback git_odb_backend_exists_callback , Ptr <git_odb_backend> -> Ptr <git_oid> -> CInt -> IO CInt
 #callback git_odb_backend_refresh_callback , Ptr <git_odb_backend> -> IO CInt
 #callback git_odb_backend_foreach_callback , Ptr <git_odb_backend> -> <git_odb_foreach_cb> -> Ptr () -> IO CInt
 #callback git_odb_backend_writepack_callback , Ptr (Ptr <git_odb_writepack>) -> Ptr <git_odb_backend> -> <git_transfer_progress_callback> -> Ptr () -> IO CInt
diff --git a/hlibgit2.cabal b/hlibgit2.cabal
--- a/hlibgit2.cabal
+++ b/hlibgit2.cabal
@@ -1,5 +1,5 @@
 Name:                hlibgit2
-Version:             0.18.0.6
+Version:             0.18.0.7
 Synopsis:            Low-level bindings to libgit2
 Description:         Bindings to libgit2 v0.18.0.
 License-file:        LICENSE