diff --git a/crates/ml-dqn/src/dqn.rs b/crates/ml-dqn/src/dqn.rs
index 24014a3b3..908f72fa7 100644
--- a/crates/ml-dqn/src/dqn.rs
+++ b/crates/ml-dqn/src/dqn.rs
@@ -111,7 +111,8 @@ pub struct DQNConfig {
     /// Initial standard deviation for noisy layers
     pub noisy_sigma_init: f64,
 
-    // BUG #37 FIX: Q-value clipping is unconditional in forward pass (prevents step-level explosions)
+    // Q-value clipping is unconditional in forward pass; gradients still flow through
+    // because clamp is applied after forward (inference only).
     /// Minimum Q-value bound (clipped during forward pass)
     /// Default: -500.0 (based on portfolio normalization baseline ±375 × 1.33 safety margin)
     pub q_value_clip_min: f32,