diff --git a/Xext/xvdix.h b/Xext/xvdix.h
index 621a1e3a3..bfd1c1aa3 100644
--- a/Xext/xvdix.h
+++ b/Xext/xvdix.h
@@ -221,7 +221,6 @@ typedef struct {
 /* Errors */
 
 #define _XvBadPort (XvBadPort+XvErrorBase)
-#define _XvBadEncoding (XvBadEncoding+XvErrorBase)
 
 extern _X_EXPORT int ProcXvDispatch(ClientPtr);
 extern _X_EXPORT int SProcXvDispatch(ClientPtr);