diff --git a/AI/Nullkiller/Analyzers/BuildAnalyzer.cpp b/AI/Nullkiller/Analyzers/BuildAnalyzer.cpp
index 17f64f324..7798cbb6b 100644
--- a/AI/Nullkiller/Analyzers/BuildAnalyzer.cpp
+++ b/AI/Nullkiller/Analyzers/BuildAnalyzer.cpp
@@ -291,6 +291,7 @@ BuildingInfo BuildAnalyzer::getBuildingOrPrerequisite(
 				prerequisite.baseCreatureID = info.baseCreatureID;
 				prerequisite.prerequisitesCount++;
 				prerequisite.armyCost = info.armyCost;
+				prerequisite.armyStrength = info.armyStrength;
 				bool haveSameOrBetterFort = false;
 				if (prerequisite.id == BuildingID::FORT && highestFort >= CGTownInstance::EFortLevel::FORT)
 					haveSameOrBetterFort = true;