diff --git a/addons/web/static/src/js/core/utils.js b/addons/web/static/src/js/core/utils.js
index 6527207dfc9..a4d6f845795 100644
--- a/addons/web/static/src/js/core/utils.js
+++ b/addons/web/static/src/js/core/utils.js
@@ -338,6 +338,8 @@ var utils = {
             // formatterCallback seems useless here.
             return number + 'e' + numberMagnitude;
         }
+        var sign = Math.sign(number);
+        number = Math.abs(number);
         for (var i = val.length; i > 0 ; i--) {
             var s = Math.pow(10, i * 3);
             if (s <= number / Math.pow(10, minDigits - 1)) {
@@ -346,6 +348,7 @@ var utils = {
                 break;
             }
         }
+        number = sign * number;
         return formatterCallback('' + number) + symbol;
     },
     /**
diff --git a/addons/web/static/tests/core/util_tests.js b/addons/web/static/tests/core/util_tests.js
index 368f36c2fc6..91a9f6b271b 100644
--- a/addons/web/static/tests/core/util_tests.js
+++ b/addons/web/static/tests/core/util_tests.js
@@ -68,7 +68,7 @@ QUnit.module('core', {}, function () {
     });
 
     QUnit.test('human_number', function (assert) {
-        assert.expect(13);
+        assert.expect(26);
 
         var human_number = utils.human_number;
 
@@ -85,6 +85,20 @@ QUnit.module('core', {}, function () {
         assert.strictEqual(human_number(1.0045e+22, 3, 1), '1.005e+22');
         assert.strictEqual(human_number(1.012e+43, 2, 1), '1.01e+43');
         assert.strictEqual(human_number(1.012e+43, 2, 2), '1.01e+43');
+
+        assert.strictEqual(human_number(-1020, 2, 1), '-1.02k');
+        assert.strictEqual(human_number(-1020000, 2, 2), '-1020k');
+        assert.strictEqual(human_number(-10200000, 2, 2), '-10.2M');
+        assert.strictEqual(human_number(-1020, 2, 1), '-1.02k');
+        assert.strictEqual(human_number(-1002, 2, 1), '-1k');
+        assert.strictEqual(human_number(-101, 2, 1), '-101');
+        assert.strictEqual(human_number(-64.2, 2, 1), '-64');
+        assert.strictEqual(human_number(-1e+18), '-1E');
+        assert.strictEqual(human_number(-1e+21, 2, 1), '-1e+21');
+        assert.strictEqual(human_number(-1.0045e+22, 2, 1), '-1e+22');
+        assert.strictEqual(human_number(-1.0045e+22, 3, 1), '-1.004e+22');
+        assert.strictEqual(human_number(-1.012e+43, 2, 1), '-1.01e+43');
+        assert.strictEqual(human_number(-1.012e+43, 2, 2), '-1.01e+43');
     });
 
 });