diff --git a/.github/workflows/formal.yml b/.github/workflows/formal.yml
index 48abd0f..86472ad 100644
--- a/.github/workflows/formal.yml
+++ b/.github/workflows/formal.yml
@@ -1,17 +1,9 @@
-name: 'tests'
+name: 'formal'
 
 on: [ push, pull_request ]
 
 jobs:
 
-#  simulation:
-#    runs-on: ubuntu-latest
-#    steps:
-#    - uses: actions/checkout@v1
-#      with:
-#        submodules: recursive
-#    - run: docker run --rm -tv $(pwd):/src -w /src/test -e BUILD_NAME=ACCEPTANCE ghdl/vunit:llvm make all
-
   formal:
     runs-on: ubuntu-latest
     steps:
diff --git a/.github/workflows/simulation.yml b/.github/workflows/simulation.yml
new file mode 100644
index 0000000..c2e76c3
--- /dev/null
+++ b/.github/workflows/simulation.yml
@@ -0,0 +1,13 @@
+name: 'simulation'
+
+on: [ push, pull_request ]
+
+jobs:
+
+  simulation:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        submodules: recursive
+    - run: docker run --rm -tv $(pwd):/src -w /src/sim -e BUILD_NAME=ACCEPTANCE ghdl/vunit:llvm make all