diff --git a/data/campaigns/Two_Brothers/scenarios/3_Guarded_Castle.cfg b/data/campaigns/Two_Brothers/scenarios/3_Guarded_Castle.cfg
index cd68ca4de71..dff3c502bd0 100644
--- a/data/campaigns/Two_Brothers/scenarios/3_Guarded_Castle.cfg
+++ b/data/campaigns/Two_Brothers/scenarios/3_Guarded_Castle.cfg
@@ -3,6 +3,7 @@ symbol_image=gate1
 id=magic_barrier
 name= _ "Magic Gate"
 char=x
+aliasof=g
 [/terrain]
 
 {terrain-graphics}