diff --git a/.github/workflows/full_source.yml b/.github/workflows/full_source.yml
index a0cd92ffb4537..e6695cd8a3a81 100644
--- a/.github/workflows/full_source.yml
+++ b/.github/workflows/full_source.yml
@@ -3,6 +3,12 @@ name: Upload full source to release.
 on:
   release:
     types: released
+  workflow_dispatch:
+    inputs:
+      release_version:
+        description: 'The version of the release to upload'
+        required: true
+        default: 'v1.0.0'
 
 jobs:
   build:
@@ -16,19 +22,31 @@ jobs:
       run: |
         pip install git-archive-all
 
-        p=$(echo frk-v${GITHUB_REF##*/v}-full.tar.gz)
+        if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
+          # Use the release version from the input if available.
+          p="frk-${{ github.event.inputs.release_version }}-full.tar.gz"
+        else
+          # Otherwise fallback to the release event.
+          p="frk-v${GITHUB_REF##*/v}-full.tar.gz"
+        fi
         echo "TAG=$p" >> $GITHUB_ENV
     - name: Build assets.
       run: |
         mkdir -p dist/
         echo "$TAG"
         ~/.local/bin/git-archive-all ./dist/${TAG}
+    - name: Set upload URL.
+      run: |
+        REPO="${{ github.repository }}"
+        FILE_PATH="${{ env.TAG }}"
+        UPLOAD_URL="https://uploads.github.com/repos/$REPO/releases/${{ github.event.release.id }}/assets?name=$FILE_PATH"
+        echo "UPLOAD_URL=$UPLOAD_URL" >> $GITHUB_ENV
     - name: Upload.
       uses: lovasoa/upload-release-asset@master
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
-        upload_url: ${{ github.event.release.upload_url }}
+        upload_url: ${{ env.UPLOAD_URL }}
         asset_path: ./dist/${{ env.TAG }}
         asset_label: Source code (tar.gz, full)
         asset_name: ${{ env.TAG }}