diff --git a/libc/kernel/uapi/linux/i2c-dev.h b/libc/kernel/uapi/linux/i2c-dev.h
index 626f4ee..fe3ea84 100644
--- a/libc/kernel/uapi/linux/i2c-dev.h
+++ b/libc/kernel/uapi/linux/i2c-dev.h
@@ -44,6 +44,7 @@
   struct i2c_msg __user * msgs;
   __u32 nmsgs;
 };
-#define I2C_RDRW_IOCTL_MAX_MSGS 42
+#define I2C_RDWR_IOCTL_MAX_MSGS 42
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define I2C_RDRW_IOCTL_MAX_MSGS I2C_RDWR_IOCTL_MAX_MSGS
 #endif