diff --git a/source/glest_game/types/unit_type.cpp b/source/glest_game/types/unit_type.cpp
index 6e52403b..e8ff20a6 100644
--- a/source/glest_game/types/unit_type.cpp
+++ b/source/glest_game/types/unit_type.cpp
@@ -548,7 +548,7 @@ bool UnitType::isOfClass(UnitClass uc) const{
 	case ucWarrior:
 		return hasSkillClass(scAttack) && !hasSkillClass(scHarvest);
 	case ucWorker:
-		return hasSkillClass(scBuild) || hasSkillClass(scRepair);
+		return hasSkillClass(scBuild) || hasSkillClass(scRepair)|| hasSkillClass(scHarvest);
 	case ucBuilding:
 		return hasSkillClass(scBeBuilt);
 	default: