diff --git a/crates/ml-alpha/src/trainer/integrated.rs b/crates/ml-alpha/src/trainer/integrated.rs
index a83fd4da2..b70491f41 100644
--- a/crates/ml-alpha/src/trainer/integrated.rs
+++ b/crates/ml-alpha/src/trainer/integrated.rs
@@ -3941,7 +3941,11 @@ impl IntegratedTrainer {
             self.last_pi_loss = l_pi_host;
 
             let l_q_host = unsafe { std::ptr::read_volatile(self.ss_q_loss_mapped.host_ptr) };
-            self.last_q_loss = l_q_host / (b_size as f32);
+            // Kernel already divides by B in atomicAdd (dqn_distributional_q.cu:285).
+            // The previous host divide was a double-divide bug — true mean CE
+            // appeared as mean/B ≈ 0.003 instead of ≈ 3.0. Matches l_pi convention
+            // (ppo_clipped_surrogate.cu:269-271 also kernel-side divides).
+            self.last_q_loss = l_q_host;
 
             let l_v_sum_host = unsafe { std::ptr::read_volatile(self.ss_v_loss_sum_mapped.host_ptr) };
             let l_v_host = l_v_sum_host / (b_size as f32);
@@ -5193,7 +5197,8 @@ impl IntegratedTrainer {
         // is zero = sentinel, and the per-branch LR controller's cold-
         // start gate handles that.
         let l_q_host = unsafe { std::ptr::read_volatile(self.ss_q_loss_mapped.host_ptr) };
-        let l_q = l_q_host / (b_size as f32).max(1.0);
+        // Kernel divides by B (see step_synthetic_body comment). No host divide.
+        let l_q = l_q_host;
 
         self.dqn_head
             .backward_gemm(