diff --git a/Source/CombatExtended/Harmony/Harmony_DamageWorker.cs b/Source/CombatExtended/Harmony/Harmony_DamageWorker.cs
index d0696f5254..78e426d75b 100644
--- a/Source/CombatExtended/Harmony/Harmony_DamageWorker.cs
+++ b/Source/CombatExtended/Harmony/Harmony_DamageWorker.cs
@@ -20,7 +20,7 @@ public static bool Prefix(DamageWorker __instance, DamageInfo dinfo, Thing victi
             {
                 return true;
             }
-            if (victim.def.useHitPoints && dinfo.Def.harmsHealth && dinfo.Def != DamageDefOf.Mining)
+            if (victim.def.useHitPoints && dinfo.Def.harmsHealth && dinfo.tool == null && dinfo.Def != DamageDefOf.Mining)
             {
                 if (victim.def.category == ThingCategory.Building)
                 {