diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 98092e965f17114e7edb8e9432c36c35510a646f..d27630cb06195b8cf495774f6010e7aea46a15ee 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -33,7 +33,7 @@ deckard:linux:amd64:
     - git submodule update --init --recursive
   script:
     - mkdir -p tests/deckard/contrib/libswrap/obj
-    - LD_LIBRARY_PATH=$(pwd)/.local/lib TESTS=sets/resolver DAEMON=$(pwd)/.local/sbin/kresd tests/deckard/kresd_run.sh
+    - MAKEFLAGS="-j $(nproc)" LD_LIBRARY_PATH=$(pwd)/.local/lib TESTS=sets/resolver DAEMON=$(pwd)/.local/sbin/kresd tests/deckard/kresd_run.sh
   dependencies:
     - build:linux:amd64
   tags: