diff --git a/.github/workflows/cargo-generate.yaml b/.github/workflows/cargo-generate.yaml
index 8a50adf..3bd4936 100644
--- a/.github/workflows/cargo-generate.yaml
+++ b/.github/workflows/cargo-generate.yaml
@@ -92,6 +92,20 @@ jobs:
           # This is required to use the `gh` CLI.
           GH_TOKEN: ${{ github.token }}
         run: |
+          # Get a list of the IDs of open issues created by this action, then count them using JQ.
+          OPEN_ISSUES="$(
+            gh issue list \
+              --search "is:issue is:open author:app/github-actions in:title ${TITLE}" \
+              --json id \
+              --jq '. | length'
+          )"
+
+          # If an issue already exists, do not create another.
+          if [[ "${OPEN_ISSUES}" -gt 0 ]]; then
+            echo 'An issue already exists on merge conflicts! Exiting without creating another.'
+            exit 0
+          fi
+
           GIT_STATUS="$(git status)"
 
           # Filter the diff to only include files with merge conflicts.