diff --git a/util/site/deploy.sh b/util/site/deploy.sh
index d636cc1..c6c1064 100755
--- a/util/site/deploy.sh
+++ b/util/site/deploy.sh
@@ -101,6 +101,7 @@
     PROJECT="${OPENTITAN_ORG_ID}"
     rm -rf ${build_dir}
     ${proj_root}/util/site/build-docs.sh build-staging
+    remove_cruft
     gcloud storage cp -R --gzip-in-flight-all ${build_dir}/* gs://${PROJECT}-staging
 }
 
@@ -110,9 +111,14 @@
     PROJECT="${OPENTITAN_ORG_ID}"
     rm -rf ${build_dir}
     ${proj_root}/util/site/build-docs.sh build
+    remove_cruft
     gcloud storage cp -R --gzip-in-flight-all ${build_dir}/* gs://${PROJECT}-prod
 }
 
+# Remove additional files from build directory that we don't need
+# TODO remove this when we are ready for .mdbookignore (https://github.com/rust-lang/mdBook/pull/1908)
+remove_cruft () { rm -rf ${build_dir}/book/.git ${build_dir}/book/.github ${build_dir}/book/build-site ${build_dir}/book/site ; }
+
 #######
 # CLI #
 #######