diff --git a/python-uranium.spec b/python-uranium.spec
index df75fba..13c81ba 100644
--- a/python-uranium.spec
+++ b/python-uranium.spec
@@ -26,6 +26,8 @@ BuildArch:      noarch
 
 # There are Python plugins in /usr/lib/uranium
 %global _python_bytecompile_extra 0
+# For backwards compatibility (not needed on F29+):
+%global __python %{__python3}
 
 %description
 Uranium is a Python framework for building 3D printing related applications.