diff --git a/src/main.cpp b/src/main.cpp
index cf56b5daab85a9b359ba0de47addde96b053f327..6abce8dceb6f9f133deb95d94f0f3d38874b0741 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -14,6 +14,7 @@
 #include <Connectivity1D.hpp>
 #include <Mesh.hpp>
 #include <AcousticSolver.hpp>
+#include <FiniteVolumesDiffusion.hpp>
 
 #include <TinyVector.hpp>
 #include <TinyMatrix.hpp>