diff --git a/specs/jekyll/runner b/specs/jekyll/runner
index 4cbf752..1cc673e 100755
--- a/specs/jekyll/runner
+++ b/specs/jekyll/runner
@@ -44,6 +44,7 @@ cp -r template/* "$BUILD"
 
 # Explicitly set permissions on all copied files.
 find "$BUILD" -type f -execdir chmod 644 {} +
+find "$BUILD" -type d -execdir chmod 755 {} +
 
 # Replace the placeholder name found in the template files.
 sed -i "s/<NAME>/$NAME/g" "$BUILD/flake.nix"