diff --git a/src/004-base/facility.js b/src/004-base/facility.js
index 80ab68fa28ae06a0f7dbefc3ef337b516363702a..2172a12d2b73fc7072349da2d10508635b5c936a 100644
--- a/src/004-base/facility.js
+++ b/src/004-base/facility.js
@@ -328,13 +328,6 @@ App.Entity.Facilities.Facility = class {
 		return this.capacity > 0;
 	}
 
-	get employeesIds() {
-		const V = State.variables;
-		const si = V.slaveIndices;
-		const ids = V[this._employeeIDsVariableName]; // updated by assignJob()/removeJob()
-		return ids.map(id => si[id]);
-	}
-
 	/** Number of already hosted slaves
 	 * @returns {number} */
 	get hostedSlaves() {
@@ -566,6 +559,10 @@ App.Entity.Facilities.FacilitySingleJob = class extends App.Entity.Facilities.Jo
 		return ids.map(id => si[id]);
 	}
 
+	get employeesIds() {
+		return State.variables[this._employeeIDsVariableName]; // updated by assignJob()/removeJob();
+	}
+
 	/** @returns {App.Entity.SlaveState[]} */
 	employees() {
 		/** @type {App.Entity.SlaveState[]} */