diff --git a/src/blenderbim/blenderbim/bim/module/model/prop.py b/src/blenderbim/blenderbim/bim/module/model/prop.py
index bcccb8e222..97e85b3b85 100644
--- a/src/blenderbim/blenderbim/bim/module/model/prop.py
+++ b/src/blenderbim/blenderbim/bim/module/model/prop.py
@@ -252,7 +252,7 @@ class BIMArrayProperties(PropertyGroup):
     is_editing: bpy.props.IntProperty(
         default=-1, description="Currently edited array index. -1 if not in array editing mode."
     )
-    count: bpy.props.IntProperty(name="Count", default=0)
+    count: bpy.props.IntProperty(name="Count", default=0, min=0)
     x: bpy.props.FloatProperty(name="X", default=0)
     y: bpy.props.FloatProperty(name="Y", default=0)
     z: bpy.props.FloatProperty(name="Z", default=0)