diff --git a/include/aidge/operator/OperatorTensor.hpp b/include/aidge/operator/OperatorTensor.hpp
index d6d1d693bc0736665c75b753209ca72ef35f511f..c09b589399070549c81bbcb1e84d6c7585703afe 100644
--- a/include/aidge/operator/OperatorTensor.hpp
+++ b/include/aidge/operator/OperatorTensor.hpp
@@ -86,7 +86,7 @@ public:
 
     virtual void setDataType(const DataType& dataType) const override;
     
-    virtual void forward();
+    virtual void forward() override;
 };
 }  // namespace Aidge