diff --git a/.github/workflows/aws_tfhe_backward_compat_tests.yml b/.github/workflows/aws_tfhe_backward_compat_tests.yml
index a518c9a544..a810cb3498 100644
--- a/.github/workflows/aws_tfhe_backward_compat_tests.yml
+++ b/.github/workflows/aws_tfhe_backward_compat_tests.yml
@@ -49,10 +49,6 @@ jobs:
           persist-credentials: 'false'
           token: ${{ secrets.FHE_ACTIONS_TOKEN }}
 
-      - name: Set up home
-        run: |
-          echo "HOME=/home/ubuntu" >> "${GITHUB_ENV}"
-
       - name: Install latest stable
         uses: dtolnay/rust-toolchain@7b1c307e0dcbda6122208f10795a713336a9b35a
         with:
diff --git a/.github/workflows/aws_tfhe_integer_tests.yml b/.github/workflows/aws_tfhe_integer_tests.yml
index a567f74fe0..b119bddbd8 100644
--- a/.github/workflows/aws_tfhe_integer_tests.yml
+++ b/.github/workflows/aws_tfhe_integer_tests.yml
@@ -95,10 +95,6 @@ jobs:
           persist-credentials: "false"
           token: ${{ secrets.FHE_ACTIONS_TOKEN }}
 
-      - name: Set up home
-        run: |
-          echo "HOME=/home/ubuntu" >> "${GITHUB_ENV}"
-
       - name: Install latest stable
         uses: dtolnay/rust-toolchain@7b1c307e0dcbda6122208f10795a713336a9b35a
         with:
diff --git a/.github/workflows/aws_tfhe_signed_integer_tests.yml b/.github/workflows/aws_tfhe_signed_integer_tests.yml
index ed7d70cd14..c5d3bd1a15 100644
--- a/.github/workflows/aws_tfhe_signed_integer_tests.yml
+++ b/.github/workflows/aws_tfhe_signed_integer_tests.yml
@@ -95,10 +95,6 @@ jobs:
           persist-credentials: "false"
           token: ${{ secrets.FHE_ACTIONS_TOKEN }}
 
-      - name: Set up home
-        run: |
-          echo "HOME=/home/ubuntu" >> "${GITHUB_ENV}"
-
       - name: Install latest stable
         uses: dtolnay/rust-toolchain@7b1c307e0dcbda6122208f10795a713336a9b35a
         with:
diff --git a/.github/workflows/aws_tfhe_tests.yml b/.github/workflows/aws_tfhe_tests.yml
index 75af0268de..312cd67033 100644
--- a/.github/workflows/aws_tfhe_tests.yml
+++ b/.github/workflows/aws_tfhe_tests.yml
@@ -156,10 +156,6 @@ jobs:
           persist-credentials: 'false'
           token: ${{ secrets.FHE_ACTIONS_TOKEN }}
 
-      - name: Set up home
-        run: |
-          echo "HOME=/home/ubuntu" >> "${GITHUB_ENV}"
-
       - name: Install latest stable
         uses: dtolnay/rust-toolchain@7b1c307e0dcbda6122208f10795a713336a9b35a
         with:
diff --git a/.github/workflows/code_coverage.yml b/.github/workflows/code_coverage.yml
index 0fecbb47c6..5d4b77a356 100644
--- a/.github/workflows/code_coverage.yml
+++ b/.github/workflows/code_coverage.yml
@@ -46,10 +46,6 @@ jobs:
       - name: Checkout tfhe-rs
         uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871
 
-      - name: Set up home
-        run: |
-          echo "HOME=/home/ubuntu" >> "${GITHUB_ENV}"
-
       - name: Install latest stable
         uses: dtolnay/rust-toolchain@7b1c307e0dcbda6122208f10795a713336a9b35a
         with:
diff --git a/.github/workflows/csprng_randomness_tests.yml b/.github/workflows/csprng_randomness_tests.yml
index 0ef038896b..f9f6d3385a 100644
--- a/.github/workflows/csprng_randomness_tests.yml
+++ b/.github/workflows/csprng_randomness_tests.yml
@@ -50,10 +50,6 @@ jobs:
           persist-credentials: 'false'
           token: ${{ secrets.FHE_ACTIONS_TOKEN }}
 
-      - name: Set up home
-        run: |
-          echo "HOME=/home/ubuntu" >> "${GITHUB_ENV}"
-
       - name: Install latest stable
         uses: dtolnay/rust-toolchain@7b1c307e0dcbda6122208f10795a713336a9b35a
         with:
diff --git a/ci/slab.toml b/ci/slab.toml
index 3123e4ede9..337f11be19 100644
--- a/ci/slab.toml
+++ b/ci/slab.toml
@@ -2,11 +2,13 @@
 region = "eu-west-3"
 image_id = "ami-0cd5012d17ae64070"
 instance_type = "m6i.32xlarge"
+user = "ubuntu"
 
 [backend.aws.cpu-big_fallback]
 region = "us-east-1"
 image_id = "ami-04e3bb9aebb6786df"
 instance_type = "m6i.32xlarge"
+user = "ubuntu"
 
 [backend.aws.cpu-small]
 region = "eu-west-3"