diff --git a/binaries/data/mods/public/simulation/ai/petra/basesManager.js b/binaries/data/mods/public/simulation/ai/petra/basesManager.js
index 59c5d1362d..51cc63dd09 100644
--- a/binaries/data/mods/public/simulation/ai/petra/basesManager.js
+++ b/binaries/data/mods/public/simulation/ai/petra/basesManager.js
@@ -481,18 +481,6 @@ BasesManager.prototype.GetTCResGatherer = function(resource)
 	return 0;
 };
 
-/**
- * flag a resource as exhausted
- */
-BasesManager.prototype.isResourceExhausted = function(resource)
-{
-	const check = "exhausted-" + resource;
-	if (this.turnCache[check] == undefined)
-		this.turnCache[check] = this.basesManager.isResourceExhausted(resource);
-
-	return this.turnCache[check];
-};
-
 /**
  * returns the number of bases with a cc
  * ActiveBases includes only those with a built cc