diff --git a/data/scripts/lib/weapongenerator.lua b/data/scripts/lib/weapongenerator.lua
index e1b1604..f522aed 100644
--- a/data/scripts/lib/weapongenerator.lua
+++ b/data/scripts/lib/weapongenerator.lua
@@ -81,9 +81,9 @@ function WeaponGenerator.generateHeavyCannon(rand, dps, tech, material, rarity)
     local Pen = rand:getInt(0, rarity.value)
     if Pen > 0 then 
         weapon.blockPenetration = Pen
-        weapon.prefix = "Cumulative Heavy Cannon /* Weapon Prefix*/"%_T
+        weapon.prefix = "Cumulative Heavy Cannon /* Weapon Prefix*/"%_t
     else
-        weapon.prefix = "Heavy Cannon /* Weapon Prefix*/"%_T
+        weapon.prefix = "Heavy Cannon /* Weapon Prefix*/"%_t
     end