diff --git a/core/src/com/unciv/logic/city/PopulationManager.kt b/core/src/com/unciv/logic/city/PopulationManager.kt
index a0290243ea..9d741e21e0 100644
--- a/core/src/com/unciv/logic/city/PopulationManager.kt
+++ b/core/src/com/unciv/logic/city/PopulationManager.kt
@@ -4,7 +4,6 @@ import com.badlogic.gdx.graphics.Color
 import com.unciv.logic.automation.Automation
 import com.unciv.logic.map.TileInfo
 import com.unciv.models.Counter
-import com.unciv.models.ruleset.Specialist
 import com.unciv.models.stats.Stats
 import com.unciv.ui.utils.withItem
 import com.unciv.ui.utils.withoutItem
@@ -89,7 +88,7 @@ class PopulationManager {
         val valueBestTile = if (bestTile == null) 0f
         else Automation.rankTileForCityWork(bestTile, cityInfo, foodWeight)
 
-        val bestJob: String? = getMaxSpecialistsNew()
+        val bestJob: String? = getMaxSpecialists()
                 .filter { specialistAllocations[it.key]!!<it.value }
                 .map { it.key }
                 .maxBy { Automation.rankSpecialist(getStatsOfSpecialist(it), cityInfo) }
@@ -117,7 +116,7 @@ class PopulationManager {
         }
 
         // unassign specialists that cannot be (e.g. the city was captured and one of the specialist buildings was destroyed)
-        val maxSpecialists = getMaxSpecialistsNew()
+        val maxSpecialists = getMaxSpecialists()
         val specialistsHashmap = specialistAllocations
         for ((specialistName, amount) in maxSpecialists)
             if (specialistsHashmap[specialistName]!! > amount)
@@ -157,7 +156,7 @@ class PopulationManager {
 
     }
 
-    fun getMaxSpecialistsNew(): Counter<String> {
+    fun getMaxSpecialists(): Counter<String> {
         val counter = Counter<String>()
         for (building in cityInfo.cityConstructions.getBuiltBuildings())
             counter.add(building.newSpecialists())
diff --git a/core/src/com/unciv/models/ruleset/Building.kt b/core/src/com/unciv/models/ruleset/Building.kt
index 66671d8468..25dadcebe3 100644
--- a/core/src/com/unciv/models/ruleset/Building.kt
+++ b/core/src/com/unciv/models/ruleset/Building.kt
@@ -19,10 +19,19 @@ class Building : NamedStats(), IConstruction {
     var cost: Int = 0
     var maintenance = 0
     private var percentStatBonus: Stats? = null
-    var specialistSlots: Stats? = null
+    var specialistSlots: Counter<String>? = null
     fun newSpecialists(): Counter<String> {
-        if(specialistSlots==null) return Counter<String>()
-        return Specialist.convertStatsToSpecialistHashmap(specialistSlots!!)
+        if (specialistSlots == null) return Counter<String>()
+        // Could have old specialist values of "gold", "science" etc - change them to the new specialist names
+        val counter = Counter<String>()
+        for ((entry, amount) in specialistSlots!!) {
+            val equivalentStat = Stat.values().firstOrNull { it.name.toLowerCase() == entry }
+
+            if (equivalentStat != null)
+                counter[Specialist.specialistNameByStat(equivalentStat)] = amount
+            else counter[entry] = amount
+        }
+        return counter
     }
     var greatPersonPoints: Stats? = null
     /** Extra cost percentage when purchasing */
@@ -108,13 +117,8 @@ class Building : NamedStats(), IConstruction {
             if (gpp.culture != 0f) stringBuilder.appendln("+" + gpp.culture.toInt() + " "+"[Great Artist] points".tr())
         }
 
-        if (this.specialistSlots != null) {
-            val ss = this.specialistSlots!!
-            if (ss.production != 0f) stringBuilder.appendln("+" + ss.production.toInt() + " " + "[Engineer specialist] slots".tr())
-            if (ss.gold       != 0f) stringBuilder.appendln("+" + ss.gold      .toInt() + " " + "[Merchant specialist] slots".tr())
-            if (ss.science    != 0f) stringBuilder.appendln("+" + ss.science   .toInt() + " " + "[Scientist specialist] slots".tr())
-            if (ss.culture    != 0f) stringBuilder.appendln("+" + ss.culture   .toInt() + " " + "[Artist specialist] slots".tr())
-        }
+        for((specialistName, amount) in newSpecialists())
+            stringBuilder.appendln("+$amount "+"[$specialistName] slots".tr())
 
         if (resourceBonusStats != null) {
             val resources = ruleset.tileResources.values.filter { name == it.building }.joinToString { it.name.tr() }
@@ -394,7 +398,6 @@ class Building : NamedStats(), IConstruction {
     fun isStatRelated(stat: Stat): Boolean {
         if (get(stat) > 0) return true
         if (getStatPercentageBonuses(null).get(stat)>0) return true
-        if (specialistSlots!=null && specialistSlots!!.get(stat)>0) return true
         if(resourceBonusStats!=null && resourceBonusStats!!.get(stat)>0) return true
         return false
     }
diff --git a/core/src/com/unciv/ui/cityscreen/CityInfoTable.kt b/core/src/com/unciv/ui/cityscreen/CityInfoTable.kt
index fe3ab20bf4..def6ee68fd 100644
--- a/core/src/com/unciv/ui/cityscreen/CityInfoTable.kt
+++ b/core/src/com/unciv/ui/cityscreen/CityInfoTable.kt
@@ -132,7 +132,7 @@ class CityInfoTable(private val cityScreen: CityScreen) : Table(CameraStageBaseS
         for (building in cityInfo.cityConstructions.getBuiltBuildings()) {
             when {
                 building.isWonder || building.isNationalWonder -> wonders.add(building)
-                building.specialistSlots != null -> specialistBuildings.add(building)
+                !building.newSpecialists().isEmpty() -> specialistBuildings.add(building)
                 else -> otherBuildings.add(building)
             }
         }
@@ -151,11 +151,10 @@ class CityInfoTable(private val cityScreen: CityScreen) : Table(CameraStageBaseS
                 addBuildingInfo(building, specialistBuildingsTable)
                 val specialistIcons = Table()
                 specialistIcons.row().size(20f).pad(5f)
-                for (stat in building.specialistSlots!!.toHashMap()) {
-                    if (stat.value == 0f) continue
-                    val specialist = cityInfo.getRuleset().specialists[Specialist.specialistNameByStat(stat.key)]
+                for ((specialistName, amount) in building.newSpecialists()) {
+                    val specialist = cityInfo.getRuleset().specialists[specialistName]
                     if (specialist == null) continue // probably a mod that doesn't have the specialist defined yet
-                    for (i in 0 until stat.value.toInt())
+                    for (i in 0 until amount)
                         specialistIcons.add(ImageGetter.getSpecialistIcon(specialist.colorObject)).size(20f)
                 }
 
diff --git a/core/src/com/unciv/ui/cityscreen/SpecialistAllocationTable.kt b/core/src/com/unciv/ui/cityscreen/SpecialistAllocationTable.kt
index 8b8454e16c..8a9a2f0fa1 100644
--- a/core/src/com/unciv/ui/cityscreen/SpecialistAllocationTable.kt
+++ b/core/src/com/unciv/ui/cityscreen/SpecialistAllocationTable.kt
@@ -5,8 +5,6 @@ import com.badlogic.gdx.scenes.scene2d.Actor
 import com.badlogic.gdx.scenes.scene2d.ui.Table
 import com.badlogic.gdx.utils.Align
 import com.unciv.UncivGame
-import com.unciv.models.ruleset.Specialist
-import com.unciv.models.stats.Stat
 import com.unciv.ui.utils.*
 
 class SpecialistAllocationTable(val cityScreen: CityScreen): Table(CameraStageBaseScreen.skin){
@@ -15,10 +13,10 @@ class SpecialistAllocationTable(val cityScreen: CityScreen): Table(CameraStageBa
     fun update() {
         clear()
 
-        for ((specialistName, amount) in cityInfo.population.getMaxSpecialistsNew()) {
+        for ((specialistName, amount) in cityInfo.population.getMaxSpecialists()) {
             val newSpecialists = cityInfo.population.getNewSpecialists()
             val assignedSpecialists = newSpecialists[specialistName]!!
-            val maxSpecialists = cityInfo.population.getMaxSpecialistsNew()[specialistName]!!
+            val maxSpecialists = cityInfo.population.getMaxSpecialists()[specialistName]!!
 
             if (cityScreen.canChangeState) add(getUnassignButton(assignedSpecialists, specialistName))
             add(getAllocationTable(assignedSpecialists, maxSpecialists, specialistName)).pad(10f)