diff --git a/contrib/devtools/github-release.sh b/contrib/devtools/github-release.sh
--- a/contrib/devtools/github-release.sh
+++ b/contrib/devtools/github-release.sh
@@ -128,6 +128,11 @@
       exit 31
     fi
   done
+
+  # Add any signature files
+  for FILENAME in "${ASSET_DIR}"/*"-sha256sums.${VERSION}.asc"; do
+    ASSET_LIST+=("${FILENAME}")
+  done
 else
   echo "Error: Asset directory '${ASSET_DIR}' does not exist"
   exit 32