diff --git a/python-pip.spec b/python-pip.spec
index f008664..ab13f0f 100644
--- a/python-pip.spec
+++ b/python-pip.spec
@@ -337,7 +337,7 @@ popd
 # this is not worth dealing with because we'll rebuild once more anyway
 %if %{without bootstrap}
 for PIP in %{buildroot}%{_bindir}/pip*; do
-  patch -p1 $PIP < %{SOURCE10}
+  patch -p1 --no-backup-if-mismatch $PIP < %{SOURCE10}
 done
 %endif