diff --git a/contrib/wallet-docker/gitbuild.sh b/contrib/wallet-docker/gitbuild.sh
index 9e84c82dd..56bd1f64d 100644
--- a/contrib/wallet-docker/gitbuild.sh
+++ b/contrib/wallet-docker/gitbuild.sh
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+# Helper script to build the latest git wallet in the walletbuilder container.
+
 set -eu
 
 # Fetch source