diff --git a/Content.Server/Explosion/EntitySystems/ExplosionSystem.Airtight.cs b/Content.Server/Explosion/EntitySystems/ExplosionSystem.Airtight.cs
index d70029ae97d..4428c8eb0eb 100644
--- a/Content.Server/Explosion/EntitySystems/ExplosionSystem.Airtight.cs
+++ b/Content.Server/Explosion/EntitySystems/ExplosionSystem.Airtight.cs
@@ -245,7 +245,7 @@ public sealed partial class ExplosionSystem
             var damagePerIntensity = FixedPoint2.Zero;
             foreach (var (type, value) in explosionType.DamagePerIntensity.DamageDict)
             {
-                if (_damageableSystem.CanBeDamagedBy((uid, damageable), type))
+                if (!_damageableSystem.CanBeDamagedBy((uid, damageable), type))
                     continue;
 
                 // TODO EXPLOSION SYSTEM