diff --git a/scripts/rpm-data/klayout.spec b/scripts/rpm-data/klayout.spec
index e826497c8..7f29304db 100644
--- a/scripts/rpm-data/klayout.spec
+++ b/scripts/rpm-data/klayout.spec
@@ -43,6 +43,7 @@ Requires: qt5-qttools >= 5.11.1
 
 %define buildopt -j2
 %define pylib %{python_sitearch}
+%define __python /usr/bin/python3
 %endif
 
 # CentOS7 requirements