diff --git a/Jobs/DETECT_DOUBLE_EXP.eai b/Jobs/DETECT_DOUBLE_EXP.eai
index 12dee2d6c..87ad2cdc8 100644
--- a/Jobs/DETECT_DOUBLE_EXP.eai
+++ b/Jobs/DETECT_DOUBLE_EXP.eai
@@ -74,7 +74,7 @@ function CheckDoubleExpansionsClaimedInArea takes real tx, real ty returns boole
   set g = null
   set u = null
   call Trace("Total Mines:" + Int2Str(minecount) + " Claimed Mines:" + Int2Str(claimedMines))
-  return claimedMines > minecount
+  return minecount > 0 and claimedMines > minecount
 endfunction
 
 // Beware Does not include own halls and mines in this check