diff --git a/include/aidge/backend/cpu/operator/MatMulImpl.hpp b/include/aidge/backend/cpu/operator/MatMulImpl.hpp
index 437d0228706f6d8f0972dab6f6aef1830f938883..bf8e31efd253ee8855f3473ef0b4a60c59a04b5f 100644
--- a/include/aidge/backend/cpu/operator/MatMulImpl.hpp
+++ b/include/aidge/backend/cpu/operator/MatMulImpl.hpp
@@ -27,11 +27,11 @@ namespace Aidge {
 // compute kernel registry for forward and backward
 class MatMulImplForward_cpu
     : public Registrable<MatMulImplForward_cpu, std::tuple<DataType, DataType, DataType>,
-                         void(const MatMul_Op::Parameters &, const DimSize_t, const DimSize_t,
+                         void(const MatMul_Op::Attrs &, const DimSize_t, const DimSize_t,
                               const void *, const void *, void *)> {};
 class MatMulImplBackward_cpu
     : public Registrable<MatMulImplBackward_cpu, std::tuple<DataType, DataType, DataType>,
-                         void(const MatMul_Op::Parameters &, const DimSize_t, const DimSize_t,
+                         void(const MatMul_Op::Attrs &, const DimSize_t, const DimSize_t,
                               const void *, const void *, void *)> {};
 
 class MatMulImpl_cpu : public OperatorImpl {
diff --git a/include/aidge/backend/cpu/operator/MatMulImpl_forward_kernels.hpp b/include/aidge/backend/cpu/operator/MatMulImpl_forward_kernels.hpp
index 2ef7e4337d2d8eb8380bfbec02ad525f211b0715..bc52779eff274379a853ea84fb839c9486652433 100644
--- a/include/aidge/backend/cpu/operator/MatMulImpl_forward_kernels.hpp
+++ b/include/aidge/backend/cpu/operator/MatMulImpl_forward_kernels.hpp
@@ -20,7 +20,7 @@
 namespace Aidge {
 
 template <class I, class W, class O>
-void MatMulImpl_cpu_forward_kernel(const MatMul_Op::Parameters& params, const DimSize_t batchSize, const DimSize_t oneInputSize,
+void MatMulImpl_cpu_forward_kernel(const MatMul_Op::Attrs& attrs, const DimSize_t batchSize, const DimSize_t oneInputSize,
                                    const void* input_, const void* weights_, void* output_) {
     // FIXME: missing MatMul parameters as arguments
     const I* input = static_cast<const I*>(input_);
@@ -28,14 +28,14 @@ void MatMulImpl_cpu_forward_kernel(const MatMul_Op::Parameters& params, const Di
     O* output = static_cast<O*>(output_);
 
 
-    std::fill(output, output+(batchSize*std::get<0>(params)), O(0));
+    std::fill(output, output+(batchSize*std::get<0>(attrs)), O(0));
 
     for (std::size_t batch = 0; batch < batchSize; ++batch) {
-        for (std::size_t out = 0; out < std::get<0>(params); ++out) {
-            output[out + batch*std::get<0>(params)] = std::inner_product(input + batch*oneInputSize,
+        for (std::size_t out = 0; out < std::get<0>(attrs); ++out) {
+            output[out + batch*std::get<0>(attrs)] = std::inner_product(input + batch*oneInputSize,
                                                         input + (batch + 1)*oneInputSize,
                                                         weights + out*oneInputSize,
-                                                        output[out + batch*std::get<0>(params)]);
+                                                        output[out + batch*std::get<0>(attrs)]);
         }
     }
 }
diff --git a/src/operator/MatMulImpl.cpp b/src/operator/MatMulImpl.cpp
index 47f11dca7605ddee71e47dc6b2ae87cff6efba4b..972e1f0fc87ad00afe670d77afc8617137076a08 100644
--- a/src/operator/MatMulImpl.cpp
+++ b/src/operator/MatMulImpl.cpp
@@ -96,7 +96,7 @@ void Aidge::MatMulImpl_cpu::forward()
     // Call kernel
     // if (mOp.getInput(0)->nbDims() == 4) {
     //     kernelFunc(
-    //         mOp.getParams(),
+    //         mOp.getStaticAttributes(),
     //         std::static_pointer_cast<Tensor>(mOp.getInput(0))->dims<4>(),
     //         mOp.getInput(0)->getImpl()->rawPtr(),
     //         mOp.mInputs[1]->getImpl()->rawPtr(),
@@ -105,7 +105,7 @@ void Aidge::MatMulImpl_cpu::forward()
     // }
     // else
     kernelFunc(
-        mOp.getParams(),
+        mOp.getStaticAttributes(),
         mOp.getInput(0)->dims()[0],
         mOp.getInput(0)->sizeM1(),
         mOp.getInput(0)->getImpl()->rawPtr(),