diff --git a/glicid/packages/benchmark.scm b/glicid/packages/benchmark.scm
index 1ac1002..4b860bd 100644
--- a/glicid/packages/benchmark.scm
+++ b/glicid/packages/benchmark.scm
@@ -127,6 +127,25 @@
  (package 
   (inherit gnu:intel-mpi-benchmarks/openmpi)
   (version "2021.3")
+(source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/intel/mpi-benchmarks")
+                    (commit (string-append "IMB-v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "02hxbk9g9nl59bk5qcfl3djj7b58vsqys340m1xdbyqwcrbnahh9"))
+              (modules '((guix build utils)))
+              (snippet
+               '(begin
+                  ;; Some source configuration files in the original tarball
+                  ;; have inappropriate execute permissions, which interferes
+                  ;; with the install phase below.
+                  (for-each (lambda (file) (chmod file #o444))
+                            (find-files "WINDOWS" "."))
+                  #t))))
+
  )
 )