diff --git a/src/debug.js b/src/debug.js
index 7b939aa..6f519c5 100644
--- a/src/debug.js
+++ b/src/debug.js
@@ -1,4 +1,4 @@
-reorder.displaymat = function(mat, rowperm, colperm) {
+export function displaymat(mat, rowperm, colperm) {
     var i, j, row, col, str;
     console.log('Matrix:');
     for (i = 0; i < mat.length; i++) {
@@ -12,7 +12,7 @@ reorder.displaymat = function(mat, rowperm, colperm) {
     }
 };
 
-reorder.printvec = function(row, prec, colperm, line) {
+export function printve(row, prec, colperm, line) {
     var j;
     if (! line)
 	line = "";
@@ -27,7 +27,7 @@ reorder.printvec = function(row, prec, colperm, line) {
     console.log(line);
 };
 
-reorder.printmat = function(m, prec, rowperm, colperm) {
+export function printmat(m, prec, rowperm, colperm) {
     var i, j, row, line;
     if (! prec) prec=4;
     for (i = 0; i < m.length; i++) {
@@ -36,14 +36,14 @@ reorder.printmat = function(m, prec, rowperm, colperm) {
     }
 };
 
-reorder.assert = function(v, msg) {
+export function assert(v, msg) {
     if (! v) {
 	console.log(msg);
 	throw msg || "Assertion failed";
     }
 };
 
-reorder.printhcluster = function(cluster,indent) {
+export function printhcluster(cluster,indent) {
     if (cluster.left === null) 
 	return  Array(indent+1).join(' ')+"id: "+cluster.id;
 
diff --git a/src/index.js b/src/index.js
index e6ad122..fe1152e 100644
--- a/src/index.js
+++ b/src/index.js
@@ -26,3 +26,10 @@ export {
   cuthill_mckee_order,
   reverse_cuthill_mckee_order
 } from './cuthill_mckee_order';
+export {
+  displaymat,
+  printve,
+  printmat,
+  assert,
+  printhcluster
+} from './debug';