diff --git a/pyartcd/pyartcd/pipelines/gen_assembly.py b/pyartcd/pyartcd/pipelines/gen_assembly.py
index 75c268214..eec325dba 100644
--- a/pyartcd/pyartcd/pipelines/gen_assembly.py
+++ b/pyartcd/pyartcd/pipelines/gen_assembly.py
@@ -101,7 +101,7 @@ async def run(self):
             if self.skip_get_nightlies:
                 candidate_nightlies = self.nightlies
             elif self.ignore_non_x86_nightlies:
-                candidate_nightlies = await self._get_latest_accepted_nightly()
+                candidate_nightlies = [await self._get_latest_accepted_nightly()]
             else:
                 candidate_nightlies, latest_nightly = await asyncio.gather(
                     *[self._get_nightlies(), self._get_latest_accepted_nightly()])