diff --git a/src/correlation.js b/src/correlation.js
index f2357fb..7d2429e 100644
--- a/src/correlation.js
+++ b/src/correlation.js
@@ -1,4 +1,4 @@
-reorder.correlation = {
+export const correlation = {
     pearson: function(a, b) {
 	var ma = science.stats.mean(a),
 	    mb = science.stats.mean(b),
diff --git a/src/index.js b/src/index.js
index 7da461b..b0ee850 100644
--- a/src/index.js
+++ b/src/index.js
@@ -13,3 +13,4 @@ export { bfs_order } from './bfs_order';
 export { ca_decorana, ca, ca_order } from './ca';
 export { condition } from './condition';
 export { version, debug } from './core';
+export { correlation } from './correlation';