diff --git a/nasm.spec b/nasm.spec
index 21ce2ed..41b53fa 100644
--- a/nasm.spec
+++ b/nasm.spec
@@ -1,7 +1,14 @@
+# Build without documentation per default if built as part of a module}
+%if ! 0%{?_module_build}
+%bcond_with documentation
+%else
+%bcond_without documentation
+%endif
+
 Summary: A portable x86 assembler which uses Intel-like syntax
 Name: nasm
 Version: 2.13.01
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: BSD
 URL: http://www.nasm.us
 Source0: http://www.nasm.us/pub/nasm/releasebuilds/%{version}/%{name}-%{version}.tar.bz2
@@ -13,6 +20,7 @@ BuildRequires: xmlto
 BuildRequires: gcc
 BuildRequires: make
 
+%if %{with documentation}
 %package doc
 Summary: Documentation for NASM
 BuildRequires: perl(Font::TTF::Font)
@@ -23,6 +31,7 @@ BuildRequires: adobe-source-code-pro-fonts
 BuildArch: noarch
 # For arch to noarch conversion
 Obsoletes: %{name}-doc < %{version}-%{release}
+%endif
 
 %package rdoff
 Summary: Tools for the RDOFF binary format, sometimes used with NASM
@@ -32,9 +41,11 @@ NASM is the Netwide Assembler, a free portable assembler for the Intel
 80x86 microprocessor series, using primarily the traditional Intel
 instruction mnemonics and syntax.
 
+%if %{with documentation}
 %description doc
 This package contains documentation for the Netwide Assembler (NASM),
 in HTML, PDF, PostScript, and text formats.
+%endif
 
 %description rdoff
 Tools for the operating-system independent RDOFF binary format, which
@@ -48,8 +59,12 @@ tar xjf %{SOURCE1} --strip-components 1
 %build
 autoreconf
 %configure
+%if %{with documentation}
 make everything %{?_smp_mflags}
 gzip -9f doc/nasmdoc.{ps,txt}
+%else
+make all %{?_smp_mflags}
+%endif
 
 %install
 make INSTALLROOT=$RPM_BUILD_ROOT install install_rdf
@@ -61,8 +76,10 @@ make INSTALLROOT=$RPM_BUILD_ROOT install install_rdf
 %{_mandir}/man1/nasm*
 %{_mandir}/man1/ndisasm*
 
+%if %{with documentation}
 %files doc
 %doc doc/html doc/nasmdoc.txt.gz doc/nasmdoc.ps.gz doc/nasmdoc.pdf
+%endif
 
 %files rdoff
 %{_bindir}/ldrdf
@@ -78,6 +95,9 @@ make INSTALLROOT=$RPM_BUILD_ROOT install install_rdf
 %{_mandir}/man1/ld*
 
 %changelog
+* Tue Jul 04 2017 Nils Philippsen <nils@redhat.com> - 2.13.01-2
+- don't build documentation during modular build
+
 * Mon May 22 2017 Mikolaj Izdebski <mizdebsk@redhat.com> - 2.13.01-1
 - Update to upstream version 2.13.01