diff --git a/dist/mastodon-sidekiq.service b/dist/mastodon-sidekiq.service
index 9dd21b8a0..35b121cd7 100644
--- a/dist/mastodon-sidekiq.service
+++ b/dist/mastodon-sidekiq.service
@@ -9,6 +9,7 @@ WorkingDirectory=/home/mastodon/live
 Environment="RAILS_ENV=production"
 Environment="DB_POOL=25"
 Environment="MALLOC_ARENA_MAX=2"
+Environment="LD_PRELOAD=libjemalloc.so"
 ExecStart=/home/mastodon/.rbenv/shims/bundle exec sidekiq -c 25
 TimeoutSec=15
 Restart=always
diff --git a/dist/mastodon-web.service b/dist/mastodon-web.service
index c106a4860..f41efd2b0 100644
--- a/dist/mastodon-web.service
+++ b/dist/mastodon-web.service
@@ -8,6 +8,7 @@ User=mastodon
 WorkingDirectory=/home/mastodon/live
 Environment="RAILS_ENV=production"
 Environment="PORT=3000"
+Environment="LD_PRELOAD=libjemalloc.so"
 ExecStart=/home/mastodon/.rbenv/shims/bundle exec puma -C config/puma.rb
 ExecReload=/bin/kill -SIGUSR1 $MAINPID
 TimeoutSec=15