diff --git a/patches/50-setcardid.sh b/patches/50-setcardid.sh
new file mode 100644
index 0000000..8a80fe1
--- /dev/null
+++ b/patches/50-setcardid.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+set -e
+if [ -z ${SEGATOOLS_CARDID+x} ]; then echo "Segatools Card ID not set, skipping."; else
+    echo $SEGATOOLS_CARDID > $dir/game/bin/DEVICE/aime.txt
+fi