diff --git a/core/src/com/unciv/logic/city/CityConstructions.kt b/core/src/com/unciv/logic/city/CityConstructions.kt
index bfd0963c60..fa31c5592c 100644
--- a/core/src/com/unciv/logic/city/CityConstructions.kt
+++ b/core/src/com/unciv/logic/city/CityConstructions.kt
@@ -226,7 +226,7 @@ class CityConstructions {
 
     fun turnsToConstruction(constructionName: String, useStoredProduction: Boolean = true): Int {
         val workLeft = getRemainingWork(constructionName, useStoredProduction)
-        if (workLeft < 0) // we've done more work than actually necessary - possible if circumstances cause buildings to be cheaper later
+        if (workLeft <= productionOverflow) // we might have done more work than actually necessary (if <0) - possible if circumstances cause buildings to be cheaper later
             return 1 // we'll finish this next turn
 
         val cityStatsForConstruction: Stats