diff --git a/changelog.txt b/changelog.txt
index c2482a7..c15de91 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,4 +1,9 @@
 ---------------------------------------------------------------------------------------------------
+Version: 0.10.11
+Date: 2021-05-05
+  Fixes:
+    - Fix crash when expected equipment techs are not present.
+---------------------------------------------------------------------------------------------------
 Version: 0.10.10
 Date: 2021-05-01
   Fixes:
diff --git a/data-util.lua b/data-util.lua
index d7a75a1..758cf8b 100644
--- a/data-util.lua
+++ b/data-util.lua
@@ -51,6 +51,13 @@ function data_util.remove_raw(t, name)
   end
 end
 
+-- Set technology recipe
+function data_util.set_tech_recipe(technology_name, ingredients)
+  if data.raw.technology[technology_name] then
+    data.raw.technology[technology_name].unit.ingredients = ingredients
+  end
+end
+
 -- Add a prerequisite to a given technology
 function data_util.add_prerequisite(technology_name, prerequisite)
   technology = data.raw.technology[technology_name]
diff --git a/info.json b/info.json
index 0c906e3..26956b3 100644
--- a/info.json
+++ b/info.json
@@ -1,6 +1,6 @@
 {
     "name": "bztitanium",
-    "version": "0.10.10",
+    "version": "0.10.11",
     "factorio_version": "1.1",
     "title": "Titanium",
     "author": "Brevven",
diff --git a/titanium-data-final-settings.lua b/titanium-data-final-settings.lua
index 6fd8406..65f1140 100644
--- a/titanium-data-final-settings.lua
+++ b/titanium-data-final-settings.lua
@@ -21,11 +21,11 @@ else
     data.raw.technology["titanium-processing"].prerequisites = {"lubricant"}
   end
   if not mods["Pre0-17-60Oil"] then
-    data.raw.technology["solar-panel-equipment"].unit.ingredients = {
-      {"automation-science-pack", 1}, {"logistic-science-pack", 1}, {"chemical-science-pack", 1}}
-    data.raw.technology["belt-immunity-equipment"].unit.ingredients = {
-      {"automation-science-pack", 1}, {"logistic-science-pack", 1}, {"chemical-science-pack", 1}}
-    data.raw.technology["night-vision-equipment"].unit.ingredients = {
-      {"automation-science-pack", 1}, {"logistic-science-pack", 1}, {"chemical-science-pack", 1}}
+    util.set_tech_recipe("solar-panel-equipment", {
+      {"automation-science-pack", 1}, {"logistic-science-pack", 1}, {"chemical-science-pack", 1}})
+    util.set_tech_recipe("belt-immunity-equipment", {
+      {"automation-science-pack", 1}, {"logistic-science-pack", 1}, {"chemical-science-pack", 1}})
+    util.set_tech_recipe("night-vision-equipment", {
+      {"automation-science-pack", 1}, {"logistic-science-pack", 1}, {"chemical-science-pack", 1}})
   end
 end