diff --git a/srcpkgs/diff-pdf/template b/srcpkgs/diff-pdf/template
index 1b1c1b69081..68d69808ad4 100644
--- a/srcpkgs/diff-pdf/template
+++ b/srcpkgs/diff-pdf/template
@@ -1,7 +1,7 @@
 # Template file for 'diff-pdf'
 pkgname=diff-pdf
 version=0.5.1
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="--with-wx-config=wx-config-gtk3"
 hostmakedepends="pkg-config"
@@ -13,3 +13,5 @@ homepage="https://vslavik.github.io/diff-pdf/"
 changelog="https://github.com/vslavik/diff-pdf/releases"
 distfiles="https://github.com/vslavik/diff-pdf/releases/download/v${version}/diff-pdf-${version}.tar.gz"
 checksum=017d52cb7ddabdbf63c6a47f39b2e5a1790022b95295b0d047817904e093245c
+
+CXXFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"