diff --git a/board/netstal/hcu4/hcu4.c b/board/netstal/hcu4/hcu4.c
index aa8a097..40bec8e 100644
--- a/board/netstal/hcu4/hcu4.c
+++ b/board/netstal/hcu4/hcu4.c
@@ -92,7 +92,7 @@
 	u16 index      = boardVersReg & 0x0f;
 
 	/* Cannot be done in board_early_init */
-	mtdcr(cntrl0,  CPC0_CR0_VALUE);
+	mtdcr(CPC0_CR0,  CPC0_CR0_VALUE);
 
 	/* Force /RTS to active. The board it not wired quite
 	 *  correctly to use cts/rtc flow control, so just force the