diff --git a/srcpkgs/lttng-ust/template b/srcpkgs/lttng-ust/template
index b3530b6be2f..a5822e2be97 100644
--- a/srcpkgs/lttng-ust/template
+++ b/srcpkgs/lttng-ust/template
@@ -12,6 +12,7 @@ homepage="http://lttng.org"
 changelog="https://github.com/lttng/lttng-ust/raw/master/ChangeLog"
 distfiles="${homepage}/files/${pkgname}/${pkgname}-${version}.tar.bz2"
 checksum=1983edb525f3f27e3494088d8d5389b4c71af66bbfe63c6f1df2ad95aa44a528
+python_version=2 #unverified
 
 lttng-ust-devel_package() {
 	depends="${sourcepkg}>=${version}_${revision} liburcu-devel"