diff --git a/lib/include/crm.h b/lib/include/crm.h
index 09da00988..93c2b4b31 100644
--- a/lib/include/crm.h
+++ b/lib/include/crm.h
@@ -266,8 +266,8 @@ static const int ROSC_CTUNE = 9;       /* 4 bits */
 static const int ROSC_FTUNE = 4;       /* 4 bits */
 static const int ROSC_EN =    0;
 
-#define ring_osc_on() (set_bit(*CRM_RINGOSC_CNTL,ROSC_EN))
-#define ring_osc_off() (clear_bit(*CRM_RINGOSC_CNTL,ROSC_EN))
+#define ring_osc_on() (CRM->RINGOSC_CNTLbits.ROSC_EN = 1)
+#define ring_osc_off() (CRM->RINGOSC_CNTLbits.ROSC_EN = 0)
 
 #define REF_OSC 24000000UL          /* reference osc. frequency */
 #define NOMINAL_RING_OSC_SEC 2000 /* nominal ring osc. frequency */