diff --git a/lib/src/metta/runner/stdlib/debug.rs b/lib/src/metta/runner/stdlib/debug.rs
index 12e9ac6d9..aed981c5f 100644
--- a/lib/src/metta/runner/stdlib/debug.rs
+++ b/lib/src/metta/runner/stdlib/debug.rs
@@ -5,7 +5,7 @@ use crate::space::*;
 use crate::common::assert::vec_eq_no_order;
 use crate::atom::matcher::atoms_are_equivalent;
 use crate::metta::runner::stdlib::{grounded_op, atom_to_string, regex, interpret_no_error, unit_result};
-use crate::metta::runner::arithmetics::*;
+use crate::metta::runner::bool::*;
 
 use std::convert::TryInto;