diff --git a/include/serial.h b/include/serial.h
index 22ec977..7946ebe 100644
--- a/include/serial.h
+++ b/include/serial.h
@@ -70,7 +70,7 @@
 #define DEFAULT_BYTESIZE EIGHTBITS
 #endif
 #ifndef DEFAULT_PARITY
-#define DEFAULT_PARITY PARTIY_NONE
+#define DEFAULT_PARITY PARITY_NONE
 #endif
 #ifndef DEFAULT_STOPBITS
 #define DEFAULT_STOPBITS STOPBITS_ONE