--- a/testing/mozharness/configs/builds/releng_sub_windows_configs/32_add-on-devel.py
+++ b/testing/mozharness/configs/builds/releng_sub_windows_configs/32_add-on-devel.py
@@ -9,16 +9,17 @@ config = {
         'build',
         'upload-files',
 #        'sendchange',
         'check-test',
 #        'generate-build-stats',
 #        'update',
     ],
     'stage_platform': 'win32-add-on-devel',
+    'build_type': 'add-on-devel',
     'enable_talos_sendchange': False,
     #### 32 bit build specific #####
     'env': {
         'BINSCOPE': 'C:/Program Files (x86)/Microsoft/SDL BinScope/BinScope.exe',
         'HG_SHARE_BASE_DIR': 'C:/builds/hg-shared',
         'MOZBUILD_STATE_PATH': os.path.join(os.getcwd(), '.mozbuild'),
         'MOZ_AUTOMATION': '1',
         'MOZ_CRASHREPORTER_NO_REPORT': '1',

--- a/testing/mozharness/configs/builds/releng_sub_windows_configs/64_add-on-devel.py
+++ b/testing/mozharness/configs/builds/releng_sub_windows_configs/64_add-on-devel.py
@@ -9,16 +9,17 @@ config = {
         'build',
         'upload-files',
 #        'sendchange',
         'check-test',
 #        'generate-build-stats',
 #        'update',
     ],
     'stage_platform': 'win64-add-on-devel',
+    'build_type': 'add-on-devel',
     'enable_talos_sendchange': False,
     #### 64 bit build specific #####
     'env': {
         'BINSCOPE': 'C:/Program Files (x86)/Microsoft/SDL BinScope/BinScope.exe',
         'HG_SHARE_BASE_DIR': 'C:/builds/hg-shared',
         'MOZ_AUTOMATION': '1',
         'MOZ_CRASHREPORTER_NO_REPORT': '1',
         'MOZ_OBJDIR': 'obj-add-on-devel',