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-rw-r--r--guix/build/emacs-build-system.scm2
1 files changed, 1 insertions, 1 deletions
diff --git a/guix/build/emacs-build-system.scm b/guix/build/emacs-build-system.scm
index 1474c80dd3..bd0d2e0266 100644
--- a/guix/build/emacs-build-system.scm
+++ b/guix/build/emacs-build-system.scm
@@ -92,7 +92,7 @@ store in '.el' files."
          (el-dir (string-append out %install-suffix "/" elpa-name-ver))
          (substitute-cmd (lambda ()
                            (substitute* (find-files "." "\\.el$")
-                             (("\"/bin/([^.].*)\"" _ cmd-name)
+                             (("\"/bin/([^.]\\S*)\"" _ cmd-name)
                               (let ((cmd (which cmd-name)))
                                 (unless cmd
                                   (error