diff --git a/boost.spec b/boost.spec
index dd7ad04..62b5c73 100644
--- a/boost.spec
+++ b/boost.spec
@@ -407,7 +407,7 @@ same place as the documentation.
 %prep
 %autosetup -p1 -n boost_%{packver}
 # Examples etc. get copied -- so drop patch backup files
-find . -name "*~" |xargs rm
+find . -name "*~" -delete
 %if !%{with numpy}
 # Boost.Build does not allow for disabling of numpy
 # extensions, thereby leading to automagic numpy