1 files changed, 1 insertions, 1 deletions
diff --git a/src/sak.c b/src/sak.c
index e0e9252..485a847 100644
--- a/src/sak.c
+++ b/src/sak.c
@@ -40,7 +40,7 @@ static struct display *sak_displays[NUM_SAKS];
 int
 sak_register(unsigned sak_code, struct display *d)
 {
-    if (sak_code > NUM_SAKS)
+    if (sak_code >= NUM_SAKS)
 	return -1;
     if (sak_displays[sak_code] == d)
 	return 0;