diff --git a/iceoryx2-ffi/cxx/include/iox/slice.hpp b/iceoryx2-ffi/cxx/include/iox/slice.hpp
index 48220726e..116f3b14a 100644
--- a/iceoryx2-ffi/cxx/include/iox/slice.hpp
+++ b/iceoryx2-ffi/cxx/include/iox/slice.hpp
@@ -28,9 +28,9 @@ class Slice {
 
     Slice(T* data, uint64_t number_of_elements);
 
-    /// @brief Returns the size of the slice in bytes.
-    /// @return The size of the slice in bytes.
-    auto size() const -> uint64_t;
+    /// @brief Returns the number of bytes the slice operates over.
+    /// @return The number of bytes the slice operates over.
+    auto number_of_bytes() const -> uint64_t;
 
     /// @brief Returns the number of elements in the slice.
     /// @return The number of elements in the slice.
@@ -90,7 +90,7 @@ Slice<T>::Slice(T* data, uint64_t number_of_elements)
 }
 
 template <typename T>
-auto Slice<T>::size() const -> uint64_t {
+auto Slice<T>::number_of_bytes() const -> uint64_t {
     return (sizeof(ValueType) * m_number_of_elements + alignof(ValueType) - 1) & ~(alignof(ValueType) - 1);
 }