diff --git a/src/deh_tables.c b/src/deh_tables.c
index 8e15ef2f1..29724923f 100644
--- a/src/deh_tables.c
+++ b/src/deh_tables.c
@@ -5997,9 +5997,13 @@ const char *const MSF_LIST[] = {
 	"TRIGGERSPECIAL_HEADBUMP",
 	"TRIGGERLINE_PLANE",
 	"TRIGGERLINE_MOBJ",
+	"INVERTPRECIP",
 	"GRAVITYFLIP",
 	"HEATWAVE",
 	"NOCLIPCAMERA",
+	"RIPPLE_FLOOR",
+	"RIPPLE_CEILING",
+	"INVERTENCORE",
 	NULL
 };