diff --git a/scripts/update_readmes.sh b/scripts/update_readmes.sh
index 0be168a..6e21897 100755
--- a/scripts/update_readmes.sh
+++ b/scripts/update_readmes.sh
@@ -49,7 +49,7 @@ for LIBRARY in *; do
         echo
         cat src/*.rs |
         sed -n '/^[a-z_:]*_lint! {$/,/^}$/p' |
-        sed -n 's,^[[:space:]]*///\([[:space:]]\(.*\)\)\?$,\2,;T;p'
+        gsed -n 's,^[[:space:]]*///\([[:space:]]\(.*\)\)\?$,\2,;T;p'
     ) > README.md
 
     # prettier --write README.md