diff --git a/backend/src/nodes/properties/inputs/numeric_inputs.py b/backend/src/nodes/properties/inputs/numeric_inputs.py
index 011c54dc1..3fef141cf 100644
--- a/backend/src/nodes/properties/inputs/numeric_inputs.py
+++ b/backend/src/nodes/properties/inputs/numeric_inputs.py
@@ -1,3 +1,4 @@
+import math
 from typing import List, Literal, Tuple, Union
 
 import navi
@@ -99,6 +100,10 @@ def make_optional(self):
 
     def enforce(self, value):
         assert isinstance(value, (int, float))
+
+        if math.isnan(value):
+            raise ValueError("NaN is not a valid number")
+
         return clampNumber(value, self.precision, self.minimum, self.maximum)