diff --git a/src/Poe2Trade.Navigation/NavigationTypes.cs b/src/Poe2Trade.Navigation/NavigationTypes.cs
index de81472..c0840a4 100644
--- a/src/Poe2Trade.Navigation/NavigationTypes.cs
+++ b/src/Poe2Trade.Navigation/NavigationTypes.cs
@@ -105,10 +105,12 @@ public class MinimapConfig
     public double MatchConfidence { get; set; } = 0.15;
 
     // Wall confidence (canvas-level): per-pixel counters to filter transient noise
-    public int ConfidenceInc { get; set; } = 3;
+    // Walls need ceil(Threshold/Inc) = 10 frames of reinforcement to appear.
+    // Transient noise (wisps, effects) moves around and can't accumulate enough.
+    public int ConfidenceInc { get; set; } = 2;
     public int ConfidenceDec { get; set; } = 1;
-    public int ConfidenceThreshold { get; set; } = 8;
-    public int ConfidenceMax { get; set; } = 30;
+    public int ConfidenceThreshold { get; set; } = 20;
+    public int ConfidenceMax { get; set; } = 40;
     public int WarmupFrames { get; set; } = 5;
 
     // Frame dedup: min changed pixels to process a frame (skip near-identical minimap frames)