diff --git a/api/vm.py b/api/vm.py
index 0e63d04..90e1735 100644
--- a/api/vm.py
+++ b/api/vm.py
@@ -40,10 +40,10 @@ class OSBootOrder(BaseModel):
 class OSInfo(BaseModel):
     model_config = ConfigDict(from_attributes=True)
 
-    name:str = Field(alias="os.name", serialization_alias="os_name")
-    version:str  = Field(alias="os.version-id", serialization_alias="os_version")
-    machine:str  = Field(alias="os.machine", serialization_alias="os_machine")
-    kernel:str  = Field(alias="os.kernel-release", serialization_alias="os_kernel_release")
+    name:str = Field(alias="os.name")
+    version:str  = Field(alias="os.version-id")
+    machine:str  = Field(alias="os.machine")
+    kernel:str  = Field(alias="os.kernel-release")
 
 class OS(BaseModel):
     firmware:configDom.OS.firmwareEnum = Field(default=configDom.OS.firmwareEnum.bios, description="Microprogramme")