diff --git a/unit_tests/optimizer/Test_Adam.cpp b/unit_tests/optimizer/Test_Adam.cpp
index cf132a25eb75a652dccd24ce0dfaeec7f7c8926e..77d26214bb0e7225975463613200add232210fe9 100644
--- a/unit_tests/optimizer/Test_Adam.cpp
+++ b/unit_tests/optimizer/Test_Adam.cpp
@@ -26,6 +26,7 @@
 #include "aidge/backend/cpu/operator/AddImpl.hpp"
 #include "aidge/backend/cpu/operator/MulImpl.hpp"
 #include "aidge/backend/cpu/operator/SubImpl.hpp"
+#include "aidge/backend/cpu/operator/DivImpl.hpp"
 #include "aidge/backend/cpu/operator/SqrtImpl.hpp"
 #include "aidge/utils/TensorUtils.hpp"