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-rw-r--r--gnu/packages/statistics.scm5
1 files changed, 3 insertions, 2 deletions
diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index bfa4cafe1e..db719f64dd 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -131,8 +131,9 @@ be output in text, PostScript, PDF or HTML.")
          (add-after 'unpack 'build-recommended-packages-reproducibly
            (lambda _
              (substitute* "src/library/Recommended/Makefile.in"
-               (("INSTALL_OPTS =.*" line)
-                (string-append line " --built-timestamp=1970-01-01")))
+               (("INSTALL_OPTS =(.*)" line rest )
+                (string-append "INSTALL_OPTS = --built-timestamp=1970-01-01"
+                               rest)))
              #t))
          (add-before 'configure 'set-default-pager
           ;; Set default pager to "cat", because otherwise it is "false",