diff --git a/include/aidge/backend/cpu/operator/ScalingImpl_forward_kernels.hpp b/include/aidge/backend/cpu/operator/ScalingImpl_forward_kernels.hpp
index 1cb7deb0507237a271f12a4dd01545cdae6a4277..df8e1a7e7b02a4ad032d6f09fae3ae2cd8a42eff 100644
--- a/include/aidge/backend/cpu/operator/ScalingImpl_forward_kernels.hpp
+++ b/include/aidge/backend/cpu/operator/ScalingImpl_forward_kernels.hpp
@@ -9,8 +9,8 @@
  *
  ********************************************************************************/
 
-#ifndef AIDGE_CPU_OPERATOR_SCALINGIMPL_FORWARD_KERNEL_H
-#define AIDGE_CPU_OPERATOR_SCALINGIMPL_FORWARD_KERNEL_H
+#ifndef AIDGE_CPU_OPERATOR_SCALINGIMPL_FORWARD_KERNEL_H_
+#define AIDGE_CPU_OPERATOR_SCALINGIMPL_FORWARD_KERNEL_H_
 
 #include <cmath>
 #include <cstddef>
@@ -103,4 +103,4 @@ static Registrar<ScalingImplForward_cpu> registrarScalingImplForward_cpu_Float64
 }  // namespace
 }  // namespace Aidge
 
-#endif /* AIDGE_CPU_OPERATOR_SCALINGIMPL_FORWARD_KERNEL_H */
\ No newline at end of file
+#endif /* AIDGE_CPU_OPERATOR_SCALINGIMPL_FORWARD_KERNEL_H_ */
\ No newline at end of file
diff --git a/include/aidge/backend/cpu/operator/SliceImpl.hpp b/include/aidge/backend/cpu/operator/SliceImpl.hpp
index 41d5367f8397d867270f2134f70890f5fc576393..80e2f0fcef83a369561095f8e55a437f7acc9675 100644
--- a/include/aidge/backend/cpu/operator/SliceImpl.hpp
+++ b/include/aidge/backend/cpu/operator/SliceImpl.hpp
@@ -57,9 +57,9 @@ public:
     NbElts_t getNbProducedData(const IOIndex_t outputIdx) const override final;
     void updateConsummerProducer() override final;
 
-    void forward();
+    void forward() override;
 
-    void backward();
+    void backward() override;
 };