diff --git a/src/bonsai/bonsai/bim/module/drawing/helper.py b/src/bonsai/bonsai/bim/module/drawing/helper.py
index 9984e5d5ca..62b4d50b66 100644
--- a/src/bonsai/bonsai/bim/module/drawing/helper.py
+++ b/src/bonsai/bonsai/bim/module/drawing/helper.py
@@ -305,7 +305,7 @@ def format_distance(
             if unit_length == "MILLIMETERS":
                 value = value / 1000
 
-        if precision:
+        if precision and isinstance(precision, float):
             value = precision * round(float(value) / precision)
 
         if decimal_places is not None: