diff --git a/binaries/data/mods/public/simulation/components/TechnologyManager.js b/binaries/data/mods/public/simulation/components/TechnologyManager.js
index 62d4e4037b..31f8e31e97 100644
--- a/binaries/data/mods/public/simulation/components/TechnologyManager.js
+++ b/binaries/data/mods/public/simulation/components/TechnologyManager.js
@@ -465,12 +465,6 @@ TechnologyManager.prototype.GetResearcher = function(tech)
 	return this.researchQueued.get(tech)
 };
 
-// Get helper data for tech modifications
-TechnologyManager.prototype.GetTechModifications = function()
-{
-	return this.modifications;
-};
-
 /**
  * Called by GUIInterface for PlayerData. AI use.
  */
diff --git a/binaries/data/mods/public/simulation/components/tests/test_GuiInterface.js b/binaries/data/mods/public/simulation/components/tests/test_GuiInterface.js
index 0161c5293d..c635a665ee 100644
--- a/binaries/data/mods/public/simulation/components/tests/test_GuiInterface.js
+++ b/binaries/data/mods/public/simulation/components/tests/test_GuiInterface.js
@@ -129,8 +129,7 @@ AddMock(100, IID_TechnologyManager, {
 	"GetStartedTechs": () => new Set(),
 	"GetResearchedTechs": () => new Set(),
 	"GetClassCounts": () => ({}),
-	"GetTypeCountsByClass": () => ({}),
-	"GetTechModifications": () => ({})
+	"GetTypeCountsByClass": () => ({})
 });
 
 AddMock(100, IID_StatisticsTracker, {
@@ -215,8 +214,7 @@ AddMock(101, IID_TechnologyManager, {
 	"GetStartedTechs": () => new Set(),
 	"GetResearchedTechs": () => new Set(),
 	"GetClassCounts": () => ({}),
-	"GetTypeCountsByClass": () => ({}),
-	"GetTechModifications": () => ({})
+	"GetTypeCountsByClass": () => ({})
 });
 
 AddMock(101, IID_StatisticsTracker, {