diff --git a/data/campaigns/Heir_To_The_Throne/scenarios/17_Scepter_of_Fire.cfg b/data/campaigns/Heir_To_The_Throne/scenarios/17_Scepter_of_Fire.cfg
index f05e3706a757..b2643bc973bc 100644
--- a/data/campaigns/Heir_To_The_Throne/scenarios/17_Scepter_of_Fire.cfg
+++ b/data/campaigns/Heir_To_The_Throne/scenarios/17_Scepter_of_Fire.cfg
@@ -640,7 +640,7 @@
                 # At this point, the lava is shrouded. Let's assume that among
                 # mages, only high-level ones know the rumble was caused by
                 # lava, either because they know the Sceptre's lore or because
-                # they are can sense the fire. Remember that level 1 Mages are
+                # they can sense the fire. Remember that level 1 Mages are
                 # apprentices, according to lore.
                 [have_unit]
                     type=Arch Mage,Great Mage,Silver Mage