diff --git a/comfy/text_encoders/cosmos.py b/comfy/text_encoders/cosmos.py
index 448381fa9..f4b40ac68 100644
--- a/comfy/text_encoders/cosmos.py
+++ b/comfy/text_encoders/cosmos.py
@@ -36,7 +36,7 @@ def te(dtype_t5=None, t5_quantization_metadata=None):
             if t5_quantization_metadata is not None:
                 model_options = model_options.copy()
                 model_options["t5xxl_quantization_metadata"] = t5_quantization_metadata
-            if dtype is None:
+            if dtype_t5 is not None:
                 dtype = dtype_t5
             super().__init__(device=device, dtype=dtype, model_options=model_options)
     return CosmosTEModel_
diff --git a/comfy/text_encoders/genmo.py b/comfy/text_encoders/genmo.py
index 5daea8135..2d7a3fbce 100644
--- a/comfy/text_encoders/genmo.py
+++ b/comfy/text_encoders/genmo.py
@@ -32,7 +32,7 @@ def mochi_te(dtype_t5=None, t5_quantization_metadata=None):
             if t5_quantization_metadata is not None:
                 model_options = model_options.copy()
                 model_options["t5xxl_quantization_metadata"] = t5_quantization_metadata
-            if dtype is None:
+            if dtype_t5 is not None:
                 dtype = dtype_t5
             super().__init__(device=device, dtype=dtype, model_options=model_options)
     return MochiTEModel_
diff --git a/comfy/text_encoders/pixart_t5.py b/comfy/text_encoders/pixart_t5.py
index e5e5f18be..51c6e50c7 100644
--- a/comfy/text_encoders/pixart_t5.py
+++ b/comfy/text_encoders/pixart_t5.py
@@ -36,7 +36,7 @@ def pixart_te(dtype_t5=None, t5_quantization_metadata=None):
             if t5_quantization_metadata is not None:
                 model_options = model_options.copy()
                 model_options["t5xxl_quantization_metadata"] = t5_quantization_metadata
-            if dtype is None:
+            if dtype_t5 is not None:
                 dtype = dtype_t5
             super().__init__(device=device, dtype=dtype, model_options=model_options)
     return PixArtTEModel_