diff --git a/src/ol/CenterConstraint.js b/src/ol/CenterConstraint.js
index da21fac1d8..2b8b67a0b0 100644
--- a/src/ol/CenterConstraint.js
+++ b/src/ol/CenterConstraint.js
@@ -2,14 +2,14 @@
  * @module ol/CenterConstraint
  */
 import {clamp} from './math.js';
-var _ol_CenterConstraint_ = {};
+var CenterConstraint = {};
 
 
 /**
  * @param {ol.Extent} extent Extent.
  * @return {ol.CenterConstraintType} The constraint.
  */
-_ol_CenterConstraint_.createExtent = function(extent) {
+CenterConstraint.createExtent = function(extent) {
   return (
     /**
      * @param {ol.Coordinate|undefined} center Center.
@@ -33,7 +33,7 @@ _ol_CenterConstraint_.createExtent = function(extent) {
  * @param {ol.Coordinate|undefined} center Center.
  * @return {ol.Coordinate|undefined} Center.
  */
-_ol_CenterConstraint_.none = function(center) {
+CenterConstraint.none = function(center) {
   return center;
 };
-export default _ol_CenterConstraint_;
+export default CenterConstraint;
diff --git a/src/ol/View.js b/src/ol/View.js
index 4e37a0251e..4a654d519b 100644
--- a/src/ol/View.js
+++ b/src/ol/View.js
@@ -3,7 +3,7 @@
  */
 import {DEFAULT_TILE_SIZE} from './tilegrid/common.js';
 import {inherits, getUid, nullFunction} from './index.js';
-import _ol_CenterConstraint_ from './CenterConstraint.js';
+import CenterConstraint from './CenterConstraint.js';
 import _ol_Object_ from './Object.js';
 import _ol_ResolutionConstraint_ from './ResolutionConstraint.js';
 import _ol_RotationConstraint_ from './RotationConstraint.js';
@@ -1088,9 +1088,9 @@ _ol_View_.prototype.setZoom = function(zoom) {
  */
 _ol_View_.createCenterConstraint_ = function(options) {
   if (options.extent !== undefined) {
-    return _ol_CenterConstraint_.createExtent(options.extent);
+    return CenterConstraint.createExtent(options.extent);
   } else {
-    return _ol_CenterConstraint_.none;
+    return CenterConstraint.none;
   }
 };