diff --git a/src/deh_tables.c b/src/deh_tables.c
index 2bae52203..a6012482b 100644
--- a/src/deh_tables.c
+++ b/src/deh_tables.c
@@ -557,6 +557,7 @@ const char *const SD_LIST[] = {
 	"LAVA",
 	"DEATHPIT",
 	"INSTAKILL",
+	"FLIPOVER",
 	NULL
 };