diff --git a/DRV/UTHERNET.DRV.S.txt b/DRV/UTHERNET.DRV.S.txt
index 1a39a2c3..e7b8fde6 100644
--- a/DRV/UTHERNET.DRV.S.txt
+++ b/DRV/UTHERNET.DRV.S.txt
@@ -165,7 +165,7 @@ Dev.Detect		sta hArgs
 				>STYA ZPTmpPTR
 				jsr DecodeMac
 				bcc .4
-				lda #DEVMGR.ERRNICL
+				lda #DEVMGR.ERRICL
 				sec
 				rts