diff --git a/crates/noirc_abi/src/input_parser/mod.rs b/crates/noirc_abi/src/input_parser/mod.rs
index 368adb45cfb..352694821e2 100644
--- a/crates/noirc_abi/src/input_parser/mod.rs
+++ b/crates/noirc_abi/src/input_parser/mod.rs
@@ -28,7 +28,9 @@ impl InputValue {
             (InputValue::Field(field_element), AbiType::Integer { width, .. }) => {
                 field_element.num_bits() <= *width
             }
-            (InputValue::Field(field_element), AbiType::Boolean) => field_element.num_bits() == 1,
+            (InputValue::Field(field_element), AbiType::Boolean) => {
+                field_element.is_one() || field_element.is_zero()
+            }
 
             (InputValue::Vec(field_elements), AbiType::Array { length, typ, .. }) => {
                 if field_elements.len() != *length as usize {