diff --git a/drivers/clk/at91/clk-main.c b/drivers/clk/at91/clk-main.c
index fb5c14af8cc8d001978d602c8b775f270ecc47d9..90988e7a5b47fb28e1cd07734135bcff63c0e513 100644
--- a/drivers/clk/at91/clk-main.c
+++ b/drivers/clk/at91/clk-main.c
@@ -162,7 +162,7 @@ at91_clk_register_main_osc(struct regmap *regmap,
 	if (bypass)
 		regmap_update_bits(regmap,
 				   AT91_CKGR_MOR, MOR_KEY_MASK |
-				   AT91_PMC_MOSCEN,
+				   AT91_PMC_OSCBYPASS,
 				   AT91_PMC_OSCBYPASS | AT91_PMC_KEY);
 
 	hw = &osc->hw;