diff --git a/libtommath.spec b/libtommath.spec
index d439f27..376ada0 100644
--- a/libtommath.spec
+++ b/libtommath.spec
@@ -1,6 +1,6 @@
 Name:           libtommath
 Version:        1.0.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        A portable number theoretic multiple-precision integer library
 License:        Public Domain
 URL:            http://www.libtom.net/
@@ -11,6 +11,7 @@ BuildRequires:  ghostscript
 BuildRequires:  libtiff-tools
 BuildRequires:  libtool
 BuildRequires:  texlive-dvips-bin
+BuildRequires:  ghostscript-tools-dvipdf
 BuildRequires:  texlive-latex-bin-bin
 BuildRequires:  texlive-makeindex-bin
 BuildRequires:  texlive-mfware-bin
@@ -76,6 +77,9 @@ find %{buildroot} -name '*.a' -delete
 %doc doc/bn.pdf doc/poster.pdf doc/tommath.pdf
 
 %changelog
+* Sun Feb 25 2018 Florian Weimer <fweimer@redhat.com> - 1.0.1-4
+- Add BuildRequires: ghostscript-tools-dvipdf
+
 * Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild