diff --git a/create_patch.sh b/create_patch.sh
new file mode 100755
index 0000000..6d64af4
--- /dev/null
+++ b/create_patch.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+if [[ -z "$1" ]]; then
+    echo "The first argument must be the name of the patch."
+    echo "The recommended format is romID_shortGameName."
+    exit -1
+fi
+
+cd desmume
+svn diff > "../patch_$1.diff"