diff --git a/glicid/packages/maths.scm b/glicid/packages/maths.scm
index d9e4e09..418991f 100644
--- a/glicid/packages/maths.scm
+++ b/glicid/packages/maths.scm
@@ -209,7 +209,7 @@
 
 (define-public glicid-dealii
   (package
-    (inherit dealii)
+    (inherit gnu:dealii)
     (version "9.6.0")
     (name "glicid-dealii")
     (arguments
@@ -270,21 +270,21 @@
     (inputs
      (modify-inputs (package-inputs glicid-dealii)
        (delete "arpack")
-       (prepend arpack-ng-openmpi
-                metis
-                scalapack)))
+       (prepend gnu:arpack-ng-openmpi
+                gnu:metis
+                gnu:scalapack)))
     (propagated-inputs
      (modify-inputs (package-propagated-inputs glicid-dealii)
        (delete "hdf5" "kokkos" "sundials")
-       (prepend hdf5-parallel-openmpi
-                openmpi
-                p4est-openmpi
-                petsc-openmpi
-                slepc-openmpi
-                sundials-openmpi
-                trilinos-for-dealii-openmpi)))
+       (prepend gnu:hdf5-parallel-openmpi
+                gnu:openmpi
+                gnu:p4est-openmpi
+                gnu:petsc-openmpi
+                gnu:slepc-openmpi
+                gnu:sundials-openmpi
+                gnu:trilinos-for-dealii-openmpi)))
     (arguments
-     (substitute-keyword-arguments (package-arguments glicid-dealii)
+     (substitute-keyword-arguments (package-arguments gnu:glicid-dealii)
        ((#:configure-flags flags)
         #~(cons "-DDEAL_II_WITH_MPI=ON" #$flags))
        ((#:phases phases #~%standard-phases)
@@ -293,3 +293,4 @@
             ;; Kokkos is included via Trilinos.
             (delete 'unset-cpath)))))
     (synopsis "Finite element library (with MPI support)")))
+