diff --git a/src/array.js b/src/array.js
index 89f7722..c0ecc51 100644
--- a/src/array.js
+++ b/src/array.js
@@ -1,4 +1,4 @@
-import value from "./value.js";
+import { value } from "./value_object.js";
 import numberArray, {isNumberArray} from "./numberArray.js";
 
 export default function(a, b) {
diff --git a/src/index.js b/src/index.js
index b4dce7d..c78b68b 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,4 +1,4 @@
-export {default as interpolate} from "./value.js";
+export {value as interpolate, object as interpolateObject} from "./value_object.js";
 export {default as interpolateArray} from "./array.js";
 export {default as interpolateBasis} from "./basis.js";
 export {default as interpolateBasisClosed} from "./basisClosed.js";
@@ -7,7 +7,6 @@ export {default as interpolateDiscrete} from "./discrete.js";
 export {default as interpolateHue} from "./hue.js";
 export {default as interpolateNumber} from "./number.js";
 export {default as interpolateNumberArray} from "./numberArray.js";
-export {default as interpolateObject} from "./object.js";
 export {default as interpolateRound} from "./round.js";
 export {default as interpolateString} from "./string.js";
 export {interpolateTransformCss, interpolateTransformSvg} from "./transform/index.js";
diff --git a/src/object.js b/src/object.js
deleted file mode 100644
index b521c33..0000000
--- a/src/object.js
+++ /dev/null
@@ -1,23 +0,0 @@
-import value from "./value.js";
-
-export default function(a, b) {
-  var i = {},
-      c = {},
-      k;
-
-  if (a === null || typeof a !== "object") a = {};
-  if (b === null || typeof b !== "object") b = {};
-
-  for (k in b) {
-    if (k in a) {
-      i[k] = value(a[k], b[k]);
-    } else {
-      c[k] = b[k];
-    }
-  }
-
-  return function(t) {
-    for (k in i) c[k] = i[k](t);
-    return c;
-  };
-}
diff --git a/src/piecewise.js b/src/piecewise.js
index 8b568c5..ad09eaa 100644
--- a/src/piecewise.js
+++ b/src/piecewise.js
@@ -1,4 +1,4 @@
-import {default as value} from "./value.js";
+import { value } from "./value_object";
 
 export default function piecewise(interpolate, values) {
   if (values === undefined) values = interpolate, interpolate = value;
diff --git a/src/value.js b/src/value_object.js
similarity index 66%
rename from src/value.js
rename to src/value_object.js
index 6a67ac4..14afef3 100644
--- a/src/value.js
+++ b/src/value_object.js
@@ -8,7 +8,7 @@ import string from "./string.js";
 import constant from "./constant.js";
 import numberArray, {isNumberArray} from "./numberArray.js";
 
-export default function(a, b) {
+export function value(a, b) {
   var t = typeof b, c;
   return b == null || t === "boolean" ? constant(b)
       : (t === "number" ? number
@@ -20,3 +20,25 @@ export default function(a, b) {
       : typeof b.valueOf !== "function" && typeof b.toString !== "function" || isNaN(b) ? object
       : number)(a, b);
 }
+
+export function object(a, b) {
+  var i = {},
+      c = {},
+      k;
+
+  if (a === null || typeof a !== "object") a = {};
+  if (b === null || typeof b !== "object") b = {};
+
+  for (k in b) {
+    if (k in a) {
+      i[k] = value(a[k], b[k]);
+    } else {
+      c[k] = b[k];
+    }
+  }
+
+  return function(t) {
+    for (k in i) c[k] = i[k](t);
+    return c;
+  };
+}