diff --git a/srcpkgs/gnubg/template b/srcpkgs/gnubg/template
index 394f27c34e6..3b9842b7bb4 100644
--- a/srcpkgs/gnubg/template
+++ b/srcpkgs/gnubg/template
@@ -14,11 +14,11 @@ license="GPL-3.0-or-later"
 homepage="https://www.gnu.org/software/gnubg/"
 distfiles="$GNU_SITE/gnubg/$pkgname-release-$version-sources.tar.gz"
 checksum=ce1b0b0c1900717cc598032a14cf8c0ee60faf24d84368b39922c0102983bc87
-LDLIBS="-lm -lreadline -lpython${pyver}"
+LDLIBS="-lm -lreadline -lpython${py3_ver}"
 
 if [ "$CROSS_BUILD" ]; then
 	hostmakedepends+=" ${pkgname}"
-	CPPFLAGS="-I$XBPS_CROSS_BASE/usr/include/python${pyver}"
+	export PYTHON_CPPFLAGS="-I$XBPS_CROSS_BASE/usr/include/python${py3_ver}"
 fi
 
 case "$XBPS_TARGET_MACHINE" in