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-rw-r--r--gnu/packages/java.scm3
1 files changed, 2 insertions, 1 deletions
diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index 97bb0b5d41..1d6d957eff 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -855,7 +855,8 @@ machine.")))
        `("--enable-bootstrap"
          "--enable-nss"
          "--without-rhino"
-         "--with-parallel-jobs"
+         ,(string-append "--with-parallel-jobs="
+                         (number->string (parallel-job-count)))
          "--disable-downloading"
          "--disable-tests"
          ,(string-append "--with-ecj="