diff --git a/horde_sdk/ai_horde_api/apimodels/base.py b/horde_sdk/ai_horde_api/apimodels/base.py
index e7cb89c..ae5f291 100644
--- a/horde_sdk/ai_horde_api/apimodels/base.py
+++ b/horde_sdk/ai_horde_api/apimodels/base.py
@@ -183,8 +183,10 @@ def width_divisible_by_64(cls, value: int) -> int:
     @field_validator("sampler_name")
     def sampler_name_must_be_known(cls, v: str | KNOWN_SAMPLERS) -> str | KNOWN_SAMPLERS:
         """Ensure that the sampler name is in this list of supported samplers."""
-        if (isinstance(v, str) and v not in KNOWN_SAMPLERS.__members__) or (not isinstance(v, KNOWN_SAMPLERS)):
-            logger.warning(f"Unknown sampler name {v}. Is your SDK out of date or did the API change?")
+        if (isinstance(v, str) and v in KNOWN_SAMPLERS.__members__) or (isinstance(v, KNOWN_SAMPLERS)):
+            return v
+
+        logger.warning(f"Unknown sampler name {v}. Is your SDK out of date or did the API change?")
 
         return v
 
diff --git a/tests/ai_horde_api/test_ai_horde_api_models.py b/tests/ai_horde_api/test_ai_horde_api_models.py
index d7a0c49..eb18f1e 100644
--- a/tests/ai_horde_api/test_ai_horde_api_models.py
+++ b/tests/ai_horde_api/test_ai_horde_api_models.py
@@ -47,7 +47,8 @@ def test_ImageGenerateAsyncRequest(ai_horde_api_key: str) -> None:
         models=["Deliberate"],
         prompt="test prompt",
         params=ImageGenerationInputPayload(
-            sampler_name=KNOWN_SAMPLERS.k_lms,
+            # sampler_name="DDIM",
+            sampler_name=KNOWN_SAMPLERS.DDIM,
             cfg_scale=7.5,
             denoising_strength=1,
             seed="123456789",
@@ -86,7 +87,7 @@ def test_ImageGenerateAsyncRequest(ai_horde_api_key: str) -> None:
     assert test_async_request.models == ["Deliberate"]
     assert test_async_request.prompt == "test prompt"
     assert test_async_request.params is not None
-    assert test_async_request.params.sampler_name == "k_lms"
+    assert test_async_request.params.sampler_name == "DDIM"
     assert test_async_request.params.cfg_scale == 7.5
     assert test_async_request.params.denoising_strength == 1
     assert test_async_request.params.seed is not None