diff --git a/src/init.c b/src/init.c
index e072d0b..0fbc33b 100644
--- a/src/init.c
+++ b/src/init.c
@@ -756,12 +756,13 @@
       };
     } else {
       xnn_params.f32.gemm = (struct gemm_parameters) {
-        .gemm = (xnn_gemm_ukernel_function) xnn_f32_gemm_ukernel_6x8__psimd_splat,
-        .igemm = (xnn_igemm_ukernel_function) xnn_f32_igemm_ukernel_6x8__psimd_splat,
-        .gemm1 = (xnn_gemm_ukernel_function) xnn_f32_igemm_ukernel_1x8__psimd_splat,
-        .igemm1 = (xnn_igemm_ukernel_function) xnn_f32_igemm_ukernel_1x8__psimd_splat,
+        .gemm = (xnn_gemm_ukernel_function) xnn_f32_gemm_ukernel_6x8s4__psimd,
+        .igemm = (xnn_igemm_ukernel_function) xnn_f32_igemm_ukernel_6x8s4__psimd,
+        .gemm1 = (xnn_gemm_ukernel_function) xnn_f32_igemm_ukernel_1x8s4__psimd,
+        .igemm1 = (xnn_igemm_ukernel_function) xnn_f32_igemm_ukernel_1x8s4__psimd,
         .mr = 6,
         .nr = 8,
+        .log2_sr = 2,
       };
     }
     xnn_params.f32.gemm2 = (struct gemm_parameters) {