diff --git a/src/vss_tools/model.py b/src/vss_tools/model.py
index 30a3665c..c69fa9b6 100644
--- a/src/vss_tools/model.py
+++ b/src/vss_tools/model.py
@@ -260,7 +260,7 @@ def check_min_max_valid_datatype(self) -> Self:
         return self
 
     def check_default_min_max(self) -> Self:
-        if not self.default:
+        if self.default is None:
             return self
         values = [self.default]
         if isinstance(self.default, list):
diff --git a/tests/test_model.py b/tests/test_model.py
index 8655aa9e..ddd79b37 100644
--- a/tests/test_model.py
+++ b/tests/test_model.py
@@ -31,6 +31,9 @@
         ({"datatype": "uint8", "max": 100, "default": 90}, True),
         ({"datatype": "uint8", "min": 10, "default": 5}, False),
         ({"datatype": "uint8", "min": 10, "default": 10}, True),
+        ({"datatype": "uint8", "min": 1, "default": 0}, False),
+        ({"datatype": "int8", "max": -1, "default": 0}, False),
+        ({"datatype": "uint8", "min": 0, "default": 0}, True),
         ({"datatype": "uint8", "default": 300}, False),
         ({"datatype": "uint8", "default": 200}, True),
         ({"datatype": "boolean", "default": True}, True),