diff --git a/gnu/packages/mpi.scm b/gnu/packages/mpi.scm
index f80ec8b78e..bca215df47 100644
--- a/gnu/packages/mpi.scm
+++ b/gnu/packages/mpi.scm
@@ -188,7 +188,7 @@ (define-public hwloc
   ;; The latest stable series of hwloc.
   hwloc-2)
 
-(define-public openmpi
+(define-public openmpi-4
   (package
     (name "openmpi")
     (version "4.1.6")
@@ -312,6 +312,8 @@ (define-public openmpi
     ;; See file://LICENSE
     (license license:bsd-2)))
 
+(define-public openmpi openmpi-4)
+
 (define-public openmpi-5
   (package
     (inherit openmpi)