diff --git a/src/api/computeRealCentroids.js b/src/api/computeRealCentroids.js
index 03e6697..26e3e73 100644
--- a/src/api/computeRealCentroids.js
+++ b/src/api/computeRealCentroids.js
@@ -1,7 +1,7 @@
-const computeRealCentroids = (dimensions, position) => row =>
-  Object.keys(dimensions).map(d => {
+const computeRealCentroids = (config, position) => row =>
+  Object.keys(config.dimensions).map(d => {
     const x = position(d);
-    const y = dimensions[d].yscale(row[d]);
+    const y = config.dimensions[d].yscale(row[d]);
     return [x, y];
   });
 
diff --git a/src/index.js b/src/index.js
index 7eb0c37..2c2f29e 100644
--- a/src/index.js
+++ b/src/index.js
@@ -153,7 +153,7 @@ const ParCoords = userConfig => {
   pc.renderMarked.default = renderMarkedDefault(config, pc, ctx, position);
   pc.renderMarked.queue = renderMarkedQueue(config, markedQueue);
 
-  pc.compute_real_centroids = computeRealCentroids(config.dimensions, position);
+  pc.compute_real_centroids = computeRealCentroids(config, position);
   pc.shadows = shadows(flags, pc);
   pc.axisDots = axisDots(config, pc, position);
   pc.clear = clear(config, pc, ctx, brush);