diff --git a/diff-pdf.1 b/diff-pdf.1
new file mode 100644
index 0000000..d1e7e77
--- /dev/null
+++ b/diff-pdf.1
@@ -0,0 +1,29 @@
+.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.16.
+.TH DIFF-PDF "1" "December 2020" "diff-pdf 0.4.1" "User Commands"
+.SH NAME
+diff-pdf \- Simple PDF comparison tool
+.SH SYNOPSIS
+.B diff-pdf
+[\fI\,-h\/\fR] [\fI\,-v\/\fR] [\fI\,-s\/\fR] [\fI\,-m\/\fR] [\fI\,--output-diff <str>\/\fR] [\fI\,--channel-tolerance <num>\/\fR] [\fI\,--view\/\fR] \fI\,file1.pdf file2.pdf\/\fR
+.SH DESCRIPTION
+.TP
+\fB\-h\fR, \fB\-\-help\fR
+show this help message
+.TP
+\fB\-v\fR, \fB\-\-verbose\fR
+be verbose
+.TP
+\fB\-s\fR, \fB\-\-skip\-identical\fR
+only output pages with differences
+.TP
+\fB\-m\fR, \fB\-\-mark\-differences\fR
+additionally mark differences on left side
+.TP
+\fB\-\-output\-diff=\fR<str>
+output differences to given PDF file
+.TP
+\fB\-\-channel\-tolerance=\fR<num>
+consider channel values to be equal if within specified tolerance
+.TP
+\fB\-\-view\fR
+view the differences in a window
diff --git a/diff-pdf.changes b/diff-pdf.changes
index 573569c..2fd1994 100644
--- a/diff-pdf.changes
+++ b/diff-pdf.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Dec 31 07:21:17 UTC 2020 - munix9@googlemail.com
+
+- Pre-create diff-pdf.1 with help2man to work around GTK+ DISPLAY
+  errors (boo#1180471)
+
 -------------------------------------------------------------------
 Tue Dec 29 12:15:14 UTC 2020 - munix9@googlemail.com
 
diff --git a/diff-pdf.spec b/diff-pdf.spec
index 668dd79..377f4d9 100644
--- a/diff-pdf.spec
+++ b/diff-pdf.spec
@@ -24,11 +24,11 @@ License:        GPL-2.0-only AND LGPL-2.0-only
 Group:          Productivity/Publishing/PDF
 URL:            https://vslavik.github.io/diff-pdf/
 Source0:        https://github.com/vslavik/diff-pdf/archive/v%{version}/%{name}-%{version}.tar.gz
+Source1:        %{name}.1
 Patch0:         fix-find-poppler.patch
 BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  gcc-c++
-BuildRequires:  help2man
 BuildRequires:  pkgconfig
 BuildRequires:  wxWidgets-devel
 BuildRequires:  pkgconfig(cairo)
@@ -50,9 +50,9 @@ diff-pdf is a simple tool for comparing two PDF files.
 %install
 %make_install
 
-install -d -m 0755 %{buildroot}%{_mandir}/man1
-help2man -N -n "%{summary}" --version-string="%{version}" --no-discard-stderr \
-	 -o %{buildroot}%{_mandir}/man1/%{name}.1 %{buildroot}%{_bindir}/%{name}
+#help2man -N -n "%%{summary}" --version-string="%%{version}" --no-discard-stderr \
+#	  -o %%{buildroot}%%{_mandir}/man1/%%{name}.1 %%{buildroot}%%{_bindir}/%%{name}
+install -D -m 0644 -t %{buildroot}%{_mandir}/man1/ %{SOURCE1}
 
 %files
 %license COPYING COPYING.icons