diff --git a/rpy.spec b/rpy.spec
index dc66454..e37085e 100644
--- a/rpy.spec
+++ b/rpy.spec
@@ -55,8 +55,8 @@ converted to Python exceptions.
 %setup -q -n %{srcname}2-%{version}
 
 %build
-# %py2_build
-# %py3_build
+# %%py2_build
+# %%py3_build
 
 # Temporary workaround to fix a bug in R
 # see https://stat.ethz.ch/pipermail/r-devel/2016-December/073548.html