diff --git a/sys/dev/pccard/card_if.m b/sys/dev/pccard/card_if.m
index 566788a87e2d..7cedc8211d90 100644
--- a/sys/dev/pccard/card_if.m
+++ b/sys/dev/pccard/card_if.m
@@ -103,7 +103,6 @@ METHOD int reprobe_card {
 
 HEADER {
 	#define DETACH_FORCE 0x01
-	#define DETACH_NOWARN 0x02
 }
 
 #