diff --git a/.github/workflows/linux_gpu.yml b/.github/workflows/linux_gpu.yml
index 50c351c..5f23824 100644
--- a/.github/workflows/linux_gpu.yml
+++ b/.github/workflows/linux_gpu.yml
@@ -17,14 +17,26 @@ jobs:
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
+    # Create a Conda env and install a newer git there for git clone
+    - name:  Create Conda environment
+      run: |
+        conda create -n _github_runner -c conda-forge -y python=3.7 \
+          pyfftw pyqt=5 numpy scipy matplotlib pillow h5py posix_ipc databroker openmpi mpi4py numba
+        source $HOME/miniconda3/bin/activate _github_runner
+        conda install -c conda-forge -y git
+        which git
+        git --version
+
+    # Check out the main
     - name: Chekout
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       uses: actions/checkout@v2
-      
+
+    - name: Init submodule
+      run: |
+        git submodule update --init
       with:
-        submodules: true
-        # a personal access token is added as a secret to this repo
-        token: ${{ secrets.GH_ACTIONS_TOKEN }}
+        token: ${{ secrets.GH_ACTIONS_TOKEN }}  # only GITHUB_TOKEN can be used by forked repos
 
     # Runs a single command using the runners shell
     - name: Ensure the right machine
@@ -33,9 +45,6 @@ jobs:
     # Runs a set of commands using the runners shell
     - name: Test Conda environment
       run: |
-        conda create -n _github_runner -c conda-forge -y python=3.7 \
-          pyfftw pyqt=5 numpy scipy matplotlib pillow h5py posix_ipc databroker openmpi mpi4py numba
-        source $HOME/miniconda3/bin/activate _github_runner
         conda list
         python --version
         pip install -v .
diff --git a/nsls2ptycho/ptycho_gui.py b/nsls2ptycho/ptycho_gui.py
index 0e8e3f5..08df4d5 100644
--- a/nsls2ptycho/ptycho_gui.py
+++ b/nsls2ptycho/ptycho_gui.py
@@ -21,6 +21,7 @@
 from nsls2ptycho.roi_gui import RoiWindow
 from nsls2ptycho.scan_pt import ScanWindow
 
+
 import h5py
 import numpy as np
 from numpy import pi