diff --git a/drivers/tty/vt/consolemap.c b/drivers/tty/vt/consolemap.c
index 5d778c0aa009161c172ada09c5915bb6e757a5b0..8ba0dc51a1f1703fef76e75d179c0cd39f3b5ec6 100644
--- a/drivers/tty/vt/consolemap.c
+++ b/drivers/tty/vt/consolemap.c
@@ -495,7 +495,7 @@ con_insert_unipair(struct uni_pagedir *p, u_short unicode, u_short fontpos)
 
 	p2[unicode & 0x3f] = fontpos;
 	
-	p->sum += (fontpos << 20) + unicode;
+	p->sum += (fontpos << 20U) + unicode;
 
 	return 0;
 }