diff --git a/src/deh_tables.c b/src/deh_tables.c
index b8b55e9cb..30dcd4db7 100644
--- a/src/deh_tables.c
+++ b/src/deh_tables.c
@@ -1061,6 +1061,7 @@ struct int_const_s const INT_CONST[] = {
 	{"RF_GHOSTLYMASK",RF_GHOSTLYMASK},
 	{"RF2_NOAFFINE",RF2_NOAFFINE},
 	{"RF2_AFFINEPAPER",RF2_AFFINEPAPER},
+	{"RF2_AFFINEPRESCALE",RF2_AFFINEPRESCALE},
 
 	// Level flags
 	{"LF_SCRIPTISFILE",LF_SCRIPTISFILE},