diff --git a/ueforth/arduino/arduino.template.ino b/ueforth/arduino/arduino.template.ino
index 2456b7a..3532f54 100644
--- a/ueforth/arduino/arduino.template.ino
+++ b/ueforth/arduino/arduino.template.ino
@@ -1,6 +1,6 @@
 /*
  * ESP32forth v{{VERSION}}
- * Revision: {{REVISON}}
+ * Revision: {{REVISION}}
  */
 
 {{opcodes}}