diff --git a/src/com/shatteredpixel/shatteredpixeldungeon/actors/blobs/ConfusionGas.java b/src/com/shatteredpixel/shatteredpixeldungeon/actors/blobs/ConfusionGas.java
index b3f3a5ee3..4e6f8861c 100644
--- a/src/com/shatteredpixel/shatteredpixeldungeon/actors/blobs/ConfusionGas.java
+++ b/src/com/shatteredpixel/shatteredpixeldungeon/actors/blobs/ConfusionGas.java
@@ -33,7 +33,8 @@ public class ConfusionGas extends Blob {
         Char ch;
         for (int i=0; i < LENGTH; i++) {
             if (cur[i] > 0 && (ch = Actor.findChar( i )) != null) {
-                Buff.prolong( ch, Vertigo.class, 2 );
+                if (!ch.immunities().contains(this.getClass()))
+                    Buff.prolong( ch, Vertigo.class, 2 );
             }
         }
     }