diff --git a/liborcus.spec b/liborcus.spec
index e3cc998..15b3142 100644
--- a/liborcus.spec
+++ b/liborcus.spec
@@ -1,5 +1,8 @@
 %global apiversion 0.8
 
+# build conversion tools
+%bcond_without convtools
+
 Name: liborcus
 Version: 0.7.1
 Release: 2%{?dist}
@@ -11,8 +14,10 @@ Source: http://kohei.us/files/orcus/src/%{name}-%{version}.tar.xz
 Patch0: liborcus-0.7.0-iostream.patch
 
 BuildRequires: boost-devel
+%if %{with convtools}
 BuildRequires: help2man
 BuildRequires: pkgconfig(libixion-0.10)
+%endif
 BuildRequires: pkgconfig(mdds) >= 0.12.0
 BuildRequires: pkgconfig(zlib)
 
@@ -21,6 +26,7 @@ BuildRequires: pkgconfig(zlib)
 documents. Currently under development are ODS, XLSX and CSV import
 filters.
 
+%if %{with convtools}
 %package model
 Summary: Spreadsheet model for %{name} conversion tools
 Requires: %{name}%{?_isa} = %{version}-%{release}
@@ -28,6 +34,7 @@ Requires: %{name}%{?_isa} = %{version}-%{release}
 %description model
 The %{name}-model package contains a spreadsheet model used by the
 conversion tools.
+%endif
 
 %package devel
 Summary: Development files for %{name}
@@ -48,15 +55,20 @@ and text.
 %prep
 %autosetup -p1
 
+%if %{without convtools}
+%global condopts --disable-spreadsheet-model
+%endif
+
 %build
 %configure --disable-debug --disable-silent-rules --disable-static \
-    --disable-werror --with-pic
+    --disable-werror --with-pic %{?condopts}
 sed -i \
     -e 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g' \
     -e 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' \
     libtool
 make %{?_smp_mflags}
 
+%if %{with convtools}
 export LD_LIBRARY_PATH=`pwd`/src/liborcus/.libs:`pwd`/src/parser/.libs:`pwd`/src/spreadsheet/.libs${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
 help2man -N -n 'convert a CSV file' -o orcus-csv.1 ./src/.libs/orcus-csv
 help2man -N -n 'convert a Gnumeric file' -o orcus-gnumeric.1 ./src/.libs/orcus-gnumeric
@@ -64,13 +76,16 @@ help2man -N -n 'convert an ODF spreadsheet' -o orcus-ods.1 ./src/.libs/orcus-ods
 help2man -N -n 'transform an XML file' -o orcus-xls-xml.1 ./src/.libs/orcus-xls-xml
 help2man -N -n 'convert a OpenXML spreadsheet' -o orcus-xlsx.1 ./src/.libs/orcus-xlsx
 help2man -N -n 'convert an XML file' -o orcus-xml.1 ./src/.libs/orcus-xml
+%endif
 
 %install
 make install DESTDIR=%{buildroot}
 rm -f %{buildroot}/%{_libdir}/*.la
 
+%if %{with convtools}
 install -m 0755 -d %{buildroot}/%{_mandir}/man1
 install -p -m 0644 orcus-*.1 %{buildroot}/%{_mandir}/man1
+%endif
 
 %check
 export LD_LIBRARY_PATH=%{buildroot}%{_libdir}${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
@@ -79,8 +94,10 @@ make check %{?_smp_mflags}
 %post -p /sbin/ldconfig
 %postun -p /sbin/ldconfig
 
+%if %{with convtools}
 %post model -p /sbin/ldconfig
 %postun model -p /sbin/ldconfig
+%endif
 
 %files
 %doc AUTHORS COPYING README
@@ -88,35 +105,41 @@ make check %{?_smp_mflags}
 %{_libdir}/%{name}-mso-%{apiversion}.so.*
 %{_libdir}/%{name}-parser-%{apiversion}.so.*
 
+%if %{with convtools}
 %files model
 %{_libdir}/%{name}-spreadsheet-model-%{apiversion}.so.*
+%endif
 
 %files devel
 %{_includedir}/%{name}-%{apiversion}
 %{_libdir}/%{name}-%{apiversion}.so
 %{_libdir}/%{name}-mso-%{apiversion}.so
 %{_libdir}/%{name}-parser-%{apiversion}.so
-%{_libdir}/%{name}-spreadsheet-model-%{apiversion}.so
 %{_libdir}/pkgconfig/%{name}-%{apiversion}.pc
+%if %{with convtools}
+%{_libdir}/%{name}-spreadsheet-model-%{apiversion}.so
 %{_libdir}/pkgconfig/%{name}-spreadsheet-model-%{apiversion}.pc
+%endif
 
 %files tools
-%{_bindir}/orcus-csv
 %{_bindir}/orcus-detect
-%{_bindir}/orcus-gnumeric
 %{_bindir}/orcus-mso-encryption
+%{_bindir}/orcus-xml-dump
+%{_bindir}/orcus-zip-dump
+%if %{with convtools}
+%{_bindir}/orcus-csv
+%{_bindir}/orcus-gnumeric
 %{_bindir}/orcus-ods
 %{_bindir}/orcus-xls-xml
 %{_bindir}/orcus-xlsx
 %{_bindir}/orcus-xml
-%{_bindir}/orcus-xml-dump
-%{_bindir}/orcus-zip-dump
 %{_mandir}/man1/orcus-csv.1*
 %{_mandir}/man1/orcus-gnumeric.1*
 %{_mandir}/man1/orcus-ods.1*
 %{_mandir}/man1/orcus-xls-xml.1*
 %{_mandir}/man1/orcus-xlsx.1*
 %{_mandir}/man1/orcus-xml.1*
+%endif
 
 %changelog
 * Tue Apr 14 2015 David Tardon <dtardon@redhat.com> - 0.7.1-2