diff --git a/rust-cxx.spec b/rust-cxx.spec
index e935d5a..0d2ac37 100644
--- a/rust-cxx.spec
+++ b/rust-cxx.spec
@@ -111,6 +111,8 @@ use the "std" feature of the "%{crate}" crate.
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
 %cargo_prep
+# Remove executable bit from CI tools
+find book/ tools/ -type f -executable -exec chmod a-x '{}' +
 
 %generate_buildrequires
 %cargo_generate_buildrequires