diff --git a/kernel/supercalls.h b/kernel/supercalls.h
index 57a0b833..53e8bfab 100644
--- a/kernel/supercalls.h
+++ b/kernel/supercalls.h
@@ -151,7 +151,7 @@ struct ksu_manual_su_cmd {
 #define KSU_IOCTL_SET_FEATURE _IOC(_IOC_WRITE, 'K', 14, 0)
 #define KSU_IOCTL_GET_WRAPPER_FD _IOC(_IOC_WRITE, 'K', 15, 0)
 #define KSU_IOCTL_MANAGE_MARK _IOC(_IOC_READ|_IOC_WRITE, 'K', 16, 0)
-#define KSU_IOCTL_NUKE_EXT4_SYSFS _IOC(_IOC_READ|_IOC_WRITE, 'K', 17, 0)
+#define KSU_IOCTL_NUKE_EXT4_SYSFS _IOC(_IOC_WRITE, 'K', 17, 0)
 // Other IOCTL command definitions
 #define KSU_IOCTL_GET_FULL_VERSION _IOC(_IOC_READ, 'K', 100, 0)
 #define KSU_IOCTL_HOOK_TYPE _IOC(_IOC_READ, 'K', 101, 0)