diff --git a/runner_manager/models/runner_group.py b/runner_manager/models/runner_group.py
index f8172772..acaf5b67 100644
--- a/runner_manager/models/runner_group.py
+++ b/runner_manager/models/runner_group.py
@@ -43,6 +43,8 @@ class BaseRunnerGroup(PydanticBaseModel):
     runners: Optional[List[int]] = None
     max: Optional[int] = Field(ge=1, default=20)
     min: Optional[int] = Field(ge=0, default=0)
+    os: str = Field(default="linux")
+    arch: str = Field(default="x64")
     labels: List[str]
     job_started_script: Optional[str] = ""
     job_completed_script: Optional[str] = ""