diff --git a/core/src/nix/daemon.sld b/core/src/nix/daemon.sld
index 7691e6a..7410a29 100644
--- a/core/src/nix/daemon.sld
+++ b/core/src/nix/daemon.sld
@@ -144,7 +144,7 @@
        (daemon-write-u64 link 0) ; keepGoing
        (daemon-write-u64 link 0) ; tryFallback
        (daemon-write-u64 link 3) ; verbosity (lvlInfo)
-       (daemon-write-u64 link 63) ; maxBuildJobs
+       (daemon-write-u64 link 30) ; maxBuildJobs
        (daemon-write-u64 link 0) ; maxSilentTime
        (daemon-write-u64 link 0) ; obsolete, useBuildHook
        (daemon-write-u64 link 0) ; verboseBuild (unused?)