diff --git a/src/c3nav/mesh/newapi.py b/src/c3nav/mesh/newapi.py
index 65de7b4f..291e5130 100644
--- a/src/c3nav/mesh/newapi.py
+++ b/src/c3nav/mesh/newapi.py
@@ -181,7 +181,7 @@ def firmware_upload(request, firmware_data: UploadFirmwareSchema, binary_files:
 
                 build = version.builds.create(
                     variant=build_data.variant,
-                    chip=image.ext_header.chip.name,
+                    chip=image.ext_header.chip,
                     sha256_hash=image.app_desc.app_elf_sha256,
                     project_description=build_data.project_description,
                     binary=binary_files_by_name[build_data.uploaded_filename],