diff --git a/srcpkgs/rrdtool/template b/srcpkgs/rrdtool/template
index c8f93b6413..53d8b08aef 100644
--- a/srcpkgs/rrdtool/template
+++ b/srcpkgs/rrdtool/template
@@ -1,12 +1,15 @@
 # Template file for 'rrdtool'
 pkgname=rrdtool
 version=1.7.2
-revision=9
+revision=10
 build_style=gnu-configure
+# configure checks sys.version[:3] for Python versioning, so 3.10 becomes 3.1;
+# until this is fixed upstream, manually define am_cv_python_version to circumvent
 configure_args="--enable-perl --enable-perl-site-install
  --with-perl-options=INSTALLDIRS=vendor --enable-ruby
  --enable-ruby-site-install --enable-python --enable-lua
- --enable-lua-site-install --enable-tcl --disable-libwrap"
+ --enable-lua-site-install --enable-tcl --disable-libwrap
+ am_cv_python_version=${py3_ver}"
 hostmakedepends="pkg-config groff intltool python3-setuptools perl-XML-Parser"
 makedepends="libxml2-devel pango-devel python3-devel ruby-devel LuaJIT-devel perl"
 depends="dejavu-fonts-ttf"