diff --git a/.github/workflows/build-loremaster.yml b/.github/workflows/build-loremaster.yml
index cc7b602..6ca9d68 100644
--- a/.github/workflows/build-loremaster.yml
+++ b/.github/workflows/build-loremaster.yml
@@ -590,7 +590,11 @@ jobs:
           } else {
             "Loremaster-$version-x86_64.AppImage"
           }
-          $changelog = python tools/release_notes.py --version $tag
+          # -join, because PowerShell captures multi-line command output as an
+          # Object[]. Embedded as one element of the $notes array it stringified
+          # to "System.Object[]", which is what shipped in place of the changelog
+          # on every release whose entry spans more than one line.
+          $changelog = (python tools/release_notes.py --version $tag) -join "`n"
           if ($LASTEXITCODE -ne 0) { throw "no changelog entry for $tag" }
           $notes = @()
           if ($prerelease) {
diff --git a/tools/release_quality_gate.py b/tools/release_quality_gate.py
index 4542979..09f4abe 100644
--- a/tools/release_quality_gate.py
+++ b/tools/release_quality_gate.py
@@ -349,6 +349,8 @@ def check_loremaster_release_pipeline() -> None:
         "actions/download-artifact@v6",
         "electron-builder --win portable --x64 --publish never",
         "-c.extraMetadata.version=$version",
+        # The changelog reaches the notes as text, not as "System.Object[]".
+        '$changelog = (python tools/release_notes.py --version $tag) -join "`n"',
     )
     missing = [value for value in required if value not in workflow]
     if missing: