diff --git a/modelopt/torch/export/quant_utils.py b/modelopt/torch/export/quant_utils.py
index 4ceb51cd2c..95b06d9a6d 100755
--- a/modelopt/torch/export/quant_utils.py
+++ b/modelopt/torch/export/quant_utils.py
@@ -1451,6 +1451,7 @@ def get_quant_config(
     default_quantization = {
         "quant_algo": None,
         "kv_cache_quant_algo": None,
+        "scale_fmt": "ue8m0",
     }
 
     quant_config["quantization"] = default_quantization
diff --git a/tests/gpu/torch/export/test_export.py b/tests/gpu/torch/export/test_export.py
index 55eee2c138..beaca16787 100644
--- a/tests/gpu/torch/export/test_export.py
+++ b/tests/gpu/torch/export/test_export.py
@@ -399,6 +399,7 @@ def test_get_scaling_factor(
                 "exclude_modules": ["linears.0", "linears.2"],
                 "kv_cache_quant_algo": None,
                 "quant_algo": "FP8",
+                "scale_fmt": "ue8m0",
             },
         ),
         (
@@ -410,6 +411,7 @@ def test_get_scaling_factor(
                 "kv_cache_quant_algo": None,
                 "pre_quant_scale": True,
                 "quant_algo": "W4A8_AWQ",
+                "scale_fmt": "ue8m0",
             },
         ),
         (
@@ -419,6 +421,7 @@ def test_get_scaling_factor(
                 "group_size": 16,
                 "kv_cache_quant_algo": None,
                 "quant_algo": "NVFP4",
+                "scale_fmt": "ue8m0",
             },
         ),
         (
@@ -430,6 +433,7 @@ def test_get_scaling_factor(
                 "pre_quant_scale": True,
                 "kv_cache_quant_algo": None,
                 "quant_algo": "NVFP4_AWQ",
+                "scale_fmt": "ue8m0",
             },
         ),
         (
@@ -441,6 +445,7 @@ def test_get_scaling_factor(
                 "kv_cache_quant_algo": None,
                 "pre_quant_scale": True,
                 "quant_algo": "W4A16_AWQ",
+                "scale_fmt": "ue8m0",
             },
         ),
         (
@@ -449,6 +454,7 @@ def test_get_scaling_factor(
                 "exclude_modules": ["linears.0", "linears.2"],
                 "quant_algo": "FP8",
                 "kv_cache_quant_algo": "FP8",
+                "scale_fmt": "ue8m0",
             },
         ),
         (
@@ -457,6 +463,7 @@ def test_get_scaling_factor(
                 "exclude_modules": ["linears.0", "linears.2"],
                 "quant_algo": "FP8",
                 "kv_cache_quant_algo": "INT8",
+                "scale_fmt": "ue8m0",
             },
         ),
     ],