diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 210bc551c..a38765a91 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,6 +20,17 @@ on:
   workflow_dispatch:
 
 jobs:
+  lib:
+    runs-on: self-hosted
+    timeout-minutes: 5
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: 'recursive'
+      - name: run LIB test
+        run: nix-shell --run "cd submodules/LIB; ./scripts/test.sh test"
+
   uart:
     runs-on: self-hosted
     timeout-minutes: 5
diff --git a/submodules/LIB/Makefile b/submodules/LIB/Makefile
index 076706113..2b4abd466 100644
--- a/submodules/LIB/Makefile
+++ b/submodules/LIB/Makefile
@@ -4,6 +4,7 @@
 #
 
 LIB_DIR:=.
+PROJECT_ROOT=..
 DISABLE_LINT:=1
 DISABLE_FORMAT:=1
 # Default lib module to setup. Can be overriden by the user.