diff --git a/.github/workflows/listgen.yml b/.github/workflows/listgen.yml
index 1f69709..8c589a3 100644
--- a/.github/workflows/listgen.yml
+++ b/.github/workflows/listgen.yml
@@ -125,9 +125,14 @@ jobs:
         run: |
           python ./support/walk-modules.py "${LISTGEN_PYTHON_VERSION}.txt"
 
-          sort -u -o ./stdlib_list/lists/"${LISTGEN_PYTHON_VERSION}.txt" \
-            ./stdlib_list/lists/"${LISTGEN_PYTHON_VERSION}.txt" \
-            "${LISTGEN_PYTHON_VERSION}.txt"
+          if [[ -f "./stdlib_list/lists/"${LISTGEN_PYTHON_VERSION}.txt"" ]]; then
+            sort -u -o ./stdlib_list/lists/"${LISTGEN_PYTHON_VERSION}.txt" \
+              ./stdlib_list/lists/"${LISTGEN_PYTHON_VERSION}.txt" \
+              "${LISTGEN_PYTHON_VERSION}.txt"
+          else
+            sort -u -o ./stdlib_list/lists/"${LISTGEN_PYTHON_VERSION}.txt" \
+              "${LISTGEN_PYTHON_VERSION}.txt"
+          fi
 
           rm "${LISTGEN_PYTHON_VERSION}.txt"