diff --git a/PHI-CL/main.lua b/PHI-CL/main.lua
index 8a91241..3f61e9d 100644
--- a/PHI-CL/main.lua
+++ b/PHI-CL/main.lua
@@ -30,9 +30,15 @@ function main.EEE(source, tier)
         item.next_upgrade = source.name .. '-' .. (tier + 1)
     end
 
-    for _, v in pairs({'production', 'energy_usage', 'heating_energy', 'crane_energy_usage', 'energy_per_shot', 'researching_speed', 'mining_speed', 'crafting_speed'}) do
+    for _, v in pairs({'production', 'energy_usage', 'heating_energy', 'crane_energy_usage', 'energy_per_shot'}) do
         if item[v] then
-            item[v] = tonumber(string.match(item[v], '[%d%.]+')) * (2 ^ (tier - source.min + 1)) .. string.match(item[v], '%a+')
+            item[v] = tonumber(string.match(item[v], '[%d%.]+')) * (2 ^ (tier - source.min + 1)) .. (string.match(item[v], '%a+') or '')
+        end
+    end
+
+    for _, v in pairs({'researching_speed', 'mining_speed', 'crafting_speed'}) do
+        if item[v] then
+            item[v] = tonumber(string.match(item[v], '[%d%.]+')) * (2 ^ (tier - source.min + 1))
         end
     end