diff --git a/scripts/build.ps1 b/scripts/build.ps1
index 8e05ba3..e1d2c9f 100644
--- a/scripts/build.ps1
+++ b/scripts/build.ps1
@@ -1,5 +1,5 @@
 [CmdletBinding()]
-param()
+param([switch]$Summary)
 $ErrorActionPreference = 'Stop'
 $root = Split-Path $PSScriptRoot -Parent
 $shared = Join-Path $root 'shared'
diff --git a/scripts/build.sh b/scripts/build.sh
index 42de42a..f0622ea 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -1,5 +1,12 @@
 #!/usr/bin/env bash
 set -euo pipefail
+summary=false
+while [ $# -gt 0 ]; do
+  case "$1" in
+    --summary) summary=true; shift ;;
+    *) printf 'Unknown argument: %s\n' "$1" >&2; exit 1 ;;
+  esac
+done
 
 root=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)
 shared="$root/shared"