diff --git a/src/models/bailingmoe3.cpp b/src/models/bailingmoe3.cpp
index 1f2592cfa..e208c7d5a 100644
--- a/src/models/bailingmoe3.cpp
+++ b/src/models/bailingmoe3.cpp
@@ -280,8 +280,8 @@ llama_model_bailingmoe3::graph::graph(const llama_model & model, const llm_graph
             ggml_tensor * beta = ggml_mul_mat(ctx0, layer.ssm_beta, cur);
             beta = ggml_sigmoid(ctx0, ggml_reshape_4d(ctx0, beta, 1, n_head, n_seq_tokens, n_seqs));
 
-            q = ggml_l2_norm(ctx0, q, hparams.f_norm_rms_eps);
-            k = ggml_l2_norm(ctx0, k, hparams.f_norm_rms_eps);
+            q = build_gdn_l2_norm(ctx0, q, hparams.f_norm_rms_eps);
+            k = build_gdn_l2_norm(ctx0, k, hparams.f_norm_rms_eps);
 
             ggml_tensor * states_all = mctx_cur->get_s_l(il);
             ggml_tensor * state = build_rs(inp_rs, states_all, hparams.n_embd_s(), n_seqs);
diff --git a/src/models/kimi-k3.cpp b/src/models/kimi-k3.cpp
index b061093eb..b7604cbf2 100644
--- a/src/models/kimi-k3.cpp
+++ b/src/models/kimi-k3.cpp
@@ -441,9 +441,9 @@ ggml_tensor * llama_model_kimi_k3::graph::build_kda_layer(
     ggml_tensor * state = build_rs(inp_rs, ssm_states_all, hparams.n_embd_s(), n_seqs);
     state = ggml_reshape_4d(ctx0, state, head_dim, head_dim, n_head_kda, n_seqs);
 
-    const float eps = hparams.f_norm_rms_eps;
-    Qcur = ggml_l2_norm(ctx0, Qcur, eps);
-    Kcur = ggml_l2_norm(ctx0, Kcur, eps);
+    const float eps_norm = hparams.f_norm_rms_eps;
+    Qcur = build_gdn_l2_norm(ctx0, Qcur, eps_norm);
+    Kcur = build_gdn_l2_norm(ctx0, Kcur, eps_norm);
 
     auto attn_out = build_delta_net(Qcur, Kcur, Vcur, g1, beta, state, il);
 
diff --git a/src/models/kimi-linear.cpp b/src/models/kimi-linear.cpp
index 601d1d9be..f391f5f50 100644
--- a/src/models/kimi-linear.cpp
+++ b/src/models/kimi-linear.cpp
@@ -331,10 +331,11 @@ llama_model_kimi_linear::graph::graph(const llama_model & model, const llm_graph
             ggml_tensor * state = build_rs(inp_rs, ssm_states_all, hparams.n_embd_s(), n_seqs);
             state = ggml_reshape_4d(ctx0, state, head_dim, head_dim, n_head, n_seqs);
 
+
             const float eps_norm = hparams.f_norm_rms_eps;
 
-            Qcur = ggml_l2_norm(ctx0, Qcur, eps_norm);
-            Kcur = ggml_l2_norm(ctx0, Kcur, eps_norm);
+            Qcur = build_gdn_l2_norm(ctx0, Qcur, eps_norm);
+            Kcur = build_gdn_l2_norm(ctx0, Kcur, eps_norm);
 
             // Choose between build_delta_net_chunking and build_delta_net_recurrent based on n_tokens
             auto attn_out = build_delta_net(Qcur, Kcur, Vcur, g1, beta, state, il);
diff --git a/src/models/models.h b/src/models/models.h
index 50e9a235c..87195fddd 100644
--- a/src/models/models.h
+++ b/src/models/models.h
@@ -10,6 +10,13 @@
 
 class llama_memory_hybrid_idx_context;
 
+// ref: https://github.com/ggml-org/llama.cpp/pull/28068
+static inline ggml_tensor * build_gdn_l2_norm(ggml_context * ctx, ggml_tensor * x, float eps) {
+    const float n = x->ne[0];
+
+    return ggml_scale(ctx, ggml_rms_norm(ctx, x, eps/n), 1.0f/sqrtf(n));
+}
+
 //
 // base classes
 //
diff --git a/src/models/qwen35.cpp b/src/models/qwen35.cpp
index 0b9210981..478f9ebea 100644
--- a/src/models/qwen35.cpp
+++ b/src/models/qwen35.cpp
@@ -423,10 +423,11 @@ ggml_tensor * llama_model_qwen35::graph::build_layer_attn_linear(
     cb(k_conv, "k_conv", il);
     cb(v_conv, "v_conv", il);
 
+
     const float eps_norm = hparams.f_norm_rms_eps;
 
-    q_conv = ggml_l2_norm(ctx0, q_conv, eps_norm);
-    k_conv = ggml_l2_norm(ctx0, k_conv, eps_norm);
+    q_conv = build_gdn_l2_norm(ctx0, q_conv, eps_norm);
+    k_conv = build_gdn_l2_norm(ctx0, k_conv, eps_norm);
 
     //q_conv = ggml_cont_4d(ctx0, q_conv, head_k_dim, num_k_heads, n_seq_tokens, n_seqs);
     //k_conv = ggml_cont_4d(ctx0, k_conv, head_k_dim, num_k_heads, n_seq_tokens, n_seqs);
diff --git a/src/models/qwen35moe.cpp b/src/models/qwen35moe.cpp
index ed4083f12..488c7d357 100644
--- a/src/models/qwen35moe.cpp
+++ b/src/models/qwen35moe.cpp
@@ -447,10 +447,11 @@ ggml_tensor * llama_model_qwen35moe::graph::build_layer_attn_linear(
     cb(k_conv, "k_conv", il);
     cb(v_conv, "v_conv", il);
 
+
     const float eps_norm = hparams.f_norm_rms_eps;
 
-    q_conv = ggml_l2_norm(ctx0, q_conv, eps_norm);
-    k_conv = ggml_l2_norm(ctx0, k_conv, eps_norm);
+    q_conv = build_gdn_l2_norm(ctx0, q_conv, eps_norm);
+    k_conv = build_gdn_l2_norm(ctx0, k_conv, eps_norm);
 
     //q_conv = ggml_cont_4d(ctx0, q_conv, head_k_dim, num_k_heads, n_seq_tokens, n_seqs);
     //k_conv = ggml_cont_4d(ctx0, k_conv, head_k_dim, num_k_heads, n_seq_tokens, n_seqs);
diff --git a/src/models/qwen3next.cpp b/src/models/qwen3next.cpp
index eb823b8ea..222c0acf0 100644
--- a/src/models/qwen3next.cpp
+++ b/src/models/qwen3next.cpp
@@ -503,10 +503,11 @@ ggml_tensor * llama_model_qwen3next::graph::build_layer_attn_linear(
     cb(k_conv, "k_conv", il);
     cb(v_conv, "v_conv", il);
 
+
     const float eps_norm = hparams.f_norm_rms_eps;
 
-    q_conv = ggml_l2_norm(ctx0, q_conv, eps_norm);
-    k_conv = ggml_l2_norm(ctx0, k_conv, eps_norm);
+    q_conv = build_gdn_l2_norm(ctx0, q_conv, eps_norm);
+    k_conv = build_gdn_l2_norm(ctx0, k_conv, eps_norm);
 
     //q_conv = ggml_cont_4d(ctx0, q_conv, head_k_dim, num_k_heads, n_seq_tokens, n_seqs);
     //k_conv = ggml_cont_4d(ctx0, k_conv, head_k_dim, num_k_heads, n_seq_tokens, n_seqs);
diff --git a/src/models/qwen4exp.cpp b/src/models/qwen4exp.cpp
index 1484c9b07..8ace95f73 100644
--- a/src/models/qwen4exp.cpp
+++ b/src/models/qwen4exp.cpp
@@ -936,10 +936,11 @@ ggml_tensor * llama_model_qwen4exp::graph::build_layer_attn_linear(
     cb(k_conv, "k_conv", il);
     cb(v_conv, "v_conv", il);
 
+
     const float eps_norm = hparams.f_norm_rms_eps;
 
-    q_conv = ggml_l2_norm(ctx0, q_conv, eps_norm);
-    k_conv = ggml_l2_norm(ctx0, k_conv, eps_norm);
+    q_conv = build_gdn_l2_norm(ctx0, q_conv, eps_norm);
+    k_conv = build_gdn_l2_norm(ctx0, k_conv, eps_norm);
 
     // repeat to match shapes when head keys != value keys; unneeded with the fused GDN
     if (num_k_heads != num_v_heads && (!cparams.fused_gdn_ar || !cparams.fused_gdn_ch)) {