diff --git a/lib/amd/build/chart_bar.min.js b/lib/amd/build/chart_bar.min.js
index 6083d244bdb..2b3127c6677 100644
--- a/lib/amd/build/chart_bar.min.js
+++ b/lib/amd/build/chart_bar.min.js
@@ -1 +1 @@
-define(["core/chart_base"],function(a){function b(){a.prototype.constructor.apply(this,arguments)}return b.prototype=Object.create(a.prototype),b.prototype.TYPE="bar",b});
\ No newline at end of file
+define(["core/chart_base"],function(a){function b(){a.prototype.constructor.apply(this,arguments)}return b.prototype=Object.create(a.prototype),b.prototype.TYPE="bar",b.prototype._setDefaults=function(){a.prototype._setDefaults.apply(this,arguments);var b=this.getYAxis(0,!0);b.setMin(0)},b});
\ No newline at end of file
diff --git a/lib/amd/src/chart_bar.js b/lib/amd/src/chart_bar.js
index e1e118a2c87..4b6fdcc2ddb 100644
--- a/lib/amd/src/chart_bar.js
+++ b/lib/amd/src/chart_bar.js
@@ -32,6 +32,12 @@ define(['core/chart_base'], function(Base) {
 
     Bar.prototype.TYPE = 'bar';
 
+    Bar.prototype._setDefaults = function() {
+        Base.prototype._setDefaults.apply(this, arguments);
+        var axis = this.getYAxis(0, true);
+        axis.setMin(0);
+    };
+
     return Bar;
 
 });
diff --git a/lib/classes/chart_bar.php b/lib/classes/chart_bar.php
index ddaa8560ecb..46f895ee824 100644
--- a/lib/classes/chart_bar.php
+++ b/lib/classes/chart_bar.php
@@ -33,4 +33,11 @@ defined('MOODLE_INTERNAL') || die();
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class chart_bar extends chart_base {
+
+    protected function set_defaults() {
+        parent::set_defaults();
+        $yaxis = $this->get_yaxis(0, true);
+        $yaxis->set_min(0);
+    }
+
 }