diff --git a/libguestfs.changes b/libguestfs.changes
index 701de2c..f22682c 100644
--- a/libguestfs.changes
+++ b/libguestfs.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Aug 20 10:57:38 CEST 2012 - ohering@suse.de
+
+- enable ocaml for sparsify
+
 -------------------------------------------------------------------
 Wed Aug 15 20:05:40 CEST 2012 - ohering@suse.de
 
diff --git a/libguestfs.spec b/libguestfs.spec
index 4c099eb..dc68f8a 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -17,6 +17,7 @@
 #
 
 
+%define with_ocaml 1
 %define with_python 1
 %define with_perl 1
 %define with_ruby 0
@@ -55,6 +56,14 @@ BuildRequires:  xz
 BuildRequires:  perl(Pod::Simple::XHTML) = 3.23
 %endif
 #
+%if %{with_ocaml}
+BuildRequires:  ocaml
+BuildRequires:  ocaml-findlib
+%define _configure_ocaml --enable-ocaml
+%else
+%define _configure_ocaml --disable-ocaml
+%endif
+#
 %if %{with_perl}
 BuildRequires:  perl
 BuildRequires:  perl-macros
@@ -267,8 +276,8 @@ autoreconf -fi
 %configure \
 	--disable-appliance \
 	--disable-haskell \
-	--disable-ocaml \
 	--disable-php \
+	%{_configure_ocaml} \
 	%{_configure_perl} \
 	%{_configure_python} \
 	%{_configure_ruby} \