diff --git a/sys/dev/cpuctl/cpuctl.c b/sys/dev/cpuctl/cpuctl.c
index c5f27acce542..742ef0db8131 100644
--- a/sys/dev/cpuctl/cpuctl.c
+++ b/sys/dev/cpuctl/cpuctl.c
@@ -63,7 +63,7 @@ static d_ioctl_t cpuctl_ioctl;
 # define	DPRINTF(...)
 #endif
 
-#define	UCODE_SIZE_MAX	(10 * 1024)
+#define	UCODE_SIZE_MAX	(16 * 1024)
 
 static int cpuctl_do_msr(int cpu, cpuctl_msr_args_t *data, u_long cmd,
     struct thread *td);