diff --git a/glicid/packages/mpi.scm b/glicid/packages/mpi.scm
index cc4f1a8..ae020bb 100644
--- a/glicid/packages/mpi.scm
+++ b/glicid/packages/mpi.scm
@@ -119,7 +119,12 @@
   ;; This is a procedure to replace GCC by GCC11,
   ;; recursively.
 ;  (package-input-rewriting/spec `((,gcc-toolchain . ,(const gcc-toolchain-11)))))
-  (package-input-rewriting `((,gcc-toolchain . ,gcc-toolchain-11))))
+  (package-input-rewriting `(
+                             (,gcc-toolchain . ,gcc-toolchain-11)
+                             (,gfortran-toolchain . ,gfortran-toolchain-11)
+                            )
+  )
+)
 
 (define gcc10-instead-of-gcc
   ;; This is a procedure to replace GCC by GCC10,