diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index d74f0af9d9e445d59d053cc3a205d2f9ff45d7df..c0ec683ebed965c44f21c0e9b480615ecfe854c5 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -2231,9 +2231,7 @@ (define-public openjdk12
               (modules '((guix build utils)))
               (snippet
                `(begin
-                  (for-each delete-file (find-files "." ".*.bin$"))
-                  (for-each delete-file (find-files "." ".*.exe$"))
-                  (for-each delete-file (find-files "." ".*.jar$"))
+                  (for-each delete-file (find-files "." ".*.(bin|exe|jar)$"))
                   #t))))
     (inputs
      `(("alsa-lib" ,alsa-lib)