diff --git a/src/serialbox-python/compare/compare.py b/src/serialbox-python/compare/compare.py
index f98c9988..aef44021 100644
--- a/src/serialbox-python/compare/compare.py
+++ b/src/serialbox-python/compare/compare.py
@@ -264,18 +264,23 @@ def compare_fields(serializers, field, savepoint, dim_bounds):
                  "error": float('nan')}]
         # Compute error
         else:
-            abs_error = abs(value_2 - value_1)
-            rel_error = abs((value_2 - value_1) / value_2) if abs(value_2) > 1.0 else 0
-            err = rel_error if abs(value_2) > 1.0 else abs_error
-
-
-            # Check error
-            if err > tol:
-                errors += [
-                    {"index": it_1.multi_index, "value_1": value_1, "value_2": value_2,
-                     "error": err}]
-                max_abs_error = max(max_abs_error, abs_error)
-                max_rel_error = max(max_rel_error, rel_error)
+            if(value_1.dtype == 'bool'):
+                if(value_1 != value_2):
+                    errors += [
+                        {"index": it_1.multi_index, "value_1": value_1, "value_2": value_2,
+                         "error": 1.0}]
+            else:
+                abs_error = abs(value_2 - value_1)
+                rel_error = abs((value_2 - value_1) / value_2) if abs(value_2) > 1.0 else 0
+                err = rel_error if abs(value_2) > 1.0 else abs_error
+
+                # Check error
+                if err > tol:
+                    errors += [
+                        {"index": it_1.multi_index, "value_1": value_1, "value_2": value_2,
+                         "error": err}]
+                    max_abs_error = max(max_abs_error, abs_error)
+                    max_rel_error = max(max_rel_error, rel_error)
 
         it_1.iternext()
         it_2.iternext()