diff --git a/packages/libaccessom2/package.py b/packages/libaccessom2/package.py
index 91b344b..2ba019d 100644
--- a/packages/libaccessom2/package.py
+++ b/packages/libaccessom2/package.py
@@ -49,3 +49,10 @@ def patch(self):
                         "",
                         "CMakeLists.txt"
             )
+
+    def cmake_args(self):
+        return [
+            self.define("CMAKE_C_COMPILER", self.spec["mpi"].mpicc),
+            self.define("CMAKE_CXX_COMPILER", self.spec["mpi"].mpicxx),
+            self.define("CMAKE_Fortran_COMPILER", self.spec["mpi"].mpifc),
+        ]