diff --git a/forge-gui/res/conquest/planes/planes.txt b/forge-gui/res/conquest/planes/planes.txt
index 0f30c81df1e..45ce8df59a8 100644
--- a/forge-gui/res/conquest/planes/planes.txt
+++ b/forge-gui/res/conquest/planes/planes.txt
@@ -5,7 +5,7 @@ Name:Kaladesh|RegionSize:6|Unreachable:True|Desc:
 Name:Kamigawa|RegionSize:6|Unreachable:True|Desc:
 Name:Lorwyn-Shadowmoor|RegionSize:9|Desc:A sunny utopia with a thriving storybook community, or a battle-wrought land cursed to perpetual gloom.\nContains cards from LRW, MOR, SHM, EVE, CNS, CN2, some C14.
 Name:Mercadia|RegionSize:6|Unreachable:True|Desc:
-Name:Mirrodin|RegionSize:6|Unreachable:True|Desc:
+Name:Mirrodin|RegionSize:9|Unreachable:True|Desc:
 Name:Rath|RegionSize:6|Unreachable:True|Desc:
 Name:Ravnica|RegionSize:9|Desc:A worldwide cityscape of grand halls, decrepit slums, and ancient ruins.\nContains cards from RAV, GPT, DIS, RTR, GTC, DGM, C15. 
 Name:Regatha|RegionSize:6|Unreachable:True|Desc: