diff --git a/include/cfven.h b/include/cfven.h
index ac2d88b7b..c7d00df8a 100755
--- a/include/cfven.h
+++ b/include/cfven.h
@@ -38,6 +38,7 @@
 #define CFV_RAGGEFF             "RAGGEFF"
 #define CFV_EMEFFRICH           "EMEFFRICH"
 #define CFV_IMPMINEFF           "IMPMINEFF"
+#define CFV_IMPMINFAT           "IMPMINFAT"
 #define CFV_NONACCEFF           "NONACCEFF"
 #define CFV_NONSCADEFF          "NONSCADEFF"
 #define CFV_ADDBOLLI            "ADDBOLLI"