diff --git a/PHI-EN/migrations/migrations.lua b/PHI-EN/migrations/migrations.lua
index 7dedc4b..c994365 100644
--- a/PHI-EN/migrations/migrations.lua
+++ b/PHI-EN/migrations/migrations.lua
@@ -10,8 +10,10 @@ for _, force in pairs(game.forces) do
                 for j=v.min, v.max, 1 do
                     if technologies['compound-energy-' .. j] ~= nil then
                         if technologies['compound-energy-' .. j].researched then
-                            recipes[v.name .. '-' .. j].enabled = true
-                            recipes[v.name .. '-' .. j].reload()
+                            if recipes[v.name .. '-' .. j] ~= nil then
+                                recipes[v.name .. '-' .. j].enabled = true
+                                recipes[v.name .. '-' .. j].reload()
+                            end
                         end
                     end
                 end
diff --git a/PHI-EQ/migrations/migrations.lua b/PHI-EQ/migrations/migrations.lua
index 96a3d7c..9b33e26 100644
--- a/PHI-EQ/migrations/migrations.lua
+++ b/PHI-EQ/migrations/migrations.lua
@@ -10,8 +10,10 @@ for _, force in pairs(game.forces) do
                 if technologies[v.tech] ~= nil then
                     if technologies[v.tech].researched then
                         for j=v.min, v.max, 1 do
-                            recipes[v.name .. '-mk' .. j .. '-equipment'].enabled = true
-                            recipes[v.name .. '-mk' .. j .. '-equipment'].reload()
+                            if recipes[v.name .. '-mk' .. j .. '-equipment'] ~= nil then
+                                recipes[v.name .. '-mk' .. j .. '-equipment'].enabled = true
+                                recipes[v.name .. '-mk' .. j .. '-equipment'].reload()
+                            end
                         end
                     end
                 end
diff --git a/PHI-MB/migrations/migrations.lua b/PHI-MB/migrations/migrations.lua
index abc5821..238cd67 100644
--- a/PHI-MB/migrations/migrations.lua
+++ b/PHI-MB/migrations/migrations.lua
@@ -10,8 +10,10 @@ for _, force in pairs(game.forces) do
                 if technologies[v.tech] ~= nil then
                     if technologies[v.tech].researched then
                         for j=v.min, v.max, 1 do
-                            recipes[v.name .. '-' .. j].enabled = true
-                            recipes[v.name .. '-' .. j].reload()
+                            if recipes[v.name .. '-' .. j] ~= nil then
+                                recipes[v.name .. '-' .. j].enabled = true
+                                recipes[v.name .. '-' .. j].reload()
+                            end
                         end
                     end
                 end
diff --git a/PHI-RS/migrations/migrations.lua b/PHI-RS/migrations/migrations.lua
index 1d84bff..8009864 100644
--- a/PHI-RS/migrations/migrations.lua
+++ b/PHI-RS/migrations/migrations.lua
@@ -12,10 +12,14 @@ for index, force in pairs(game.forces) do
     for _, v in pairs(items) do
         if technologies[v.tech] ~= nil then
             if technologies[v.tech].researched then
-                recipes[v.name .. '-s1'].enabled = true
-                recipes[v.name .. '-s1'].reload()
-                recipes[v.name .. '-s2'].enabled = true
-                recipes[v.name .. '-s2'].reload()
+                if recipes[v.name .. '-s1'] ~= nil then
+                    recipes[v.name .. '-s1'].enabled = true
+                    recipes[v.name .. '-s1'].reload()
+                end
+                if recipes[v.name .. '-s2'] ~= nil then
+                    recipes[v.name .. '-s2'].enabled = true
+                    recipes[v.name .. '-s2'].reload()
+                end
             end
         end
     end
diff --git a/PHI-WE/migrations/migrations.lua b/PHI-WE/migrations/migrations.lua
index 979096e..d401e70 100644
--- a/PHI-WE/migrations/migrations.lua
+++ b/PHI-WE/migrations/migrations.lua
@@ -10,8 +10,10 @@ for _, force in pairs(game.forces) do
                 if technologies[v.tech] ~= nil then
                     if technologies[v.tech].researched then
                         for j=v.min, v.max, 1 do
-                            recipes[v.name .. '-' .. j].enabled = true
-                            recipes[v.name .. '-' .. j].reload()
+                            if recipes[v.name .. '-' .. j] ~= nil then
+                                recipes[v.name .. '-' .. j].enabled = true
+                                recipes[v.name .. '-' .. j].reload()
+                            end
                         end
                     end
                 end