diff --git a/ba/fconv.ini b/ba/fconv.ini
index 716c29e63..2f6b996de 100755
--- a/ba/fconv.ini
+++ b/ba/fconv.ini
@@ -17,6 +17,8 @@ ACNV(13)=bacnv 9
 [199509]
 ACNV(5)=bacnv 10 
 [199510]
-ACNV(4)=bacnv 11 
+ACNV(50)=bacnv 11 
+[199511]
+ACNV(4)=bacnv 12 
 [EOF]