diff --git a/.github/actions/run_tests/action.yml b/.github/actions/run_tests/action.yml
index 42e766c..f2d7887 100644
--- a/.github/actions/run_tests/action.yml
+++ b/.github/actions/run_tests/action.yml
@@ -20,4 +20,5 @@ runs:
         name: psyc_${{ inputs.compiler }}_${{ inputs.build_config }}
 
     - name: scratchpad.psy
+      shell: bash
       run: psyc -v ./samples/scratchpad.psy --dump-ast --dump-ir
\ No newline at end of file