diff --git a/glicid/packages/python.scm b/glicid/packages/python.scm
index 1be15f5..b184437 100644
--- a/glicid/packages/python.scm
+++ b/glicid/packages/python.scm
@@ -16,6 +16,15 @@
         (sha256 (base32 "03q8lcb476a9n41nih9qvwf1fzfzjbvq6vj0cnmd458yixchqnqj"))
       )
     )
+    (arguments
+     (substitute-keyword-arguments (package-arguments gnu:python-3.9)
+       ((#:tests? _ #f)
+        ;; FIXME: To run the test suite, fix all the instances where scripts
+        ;; generates "#! /bin/sh" shebangs.
+        #f)
+      )
+    )    
+
   )
 )