diff --git a/lib/client/renderer.js b/lib/client/renderer.js
index a3841695060..ea5012b76b1 100644
--- a/lib/client/renderer.js
+++ b/lib/client/renderer.js
@@ -630,7 +630,7 @@ function init (client, d3) {
       var glucose = treatment.glucose;
       if (client.settings.units != client.ddata.profile.getUnits()) {
         glucose *= (client.settings.units === 'mmol' ? (1 / consts.MMOL_TO_MGDL) : consts.MMOL_TO_MGDL);
-        var decimals = (client.settings.units === 'mmol' ? 10 : 1);
+        const decimals = (client.settings.units === 'mmol' ? 10 : 1);
 
         glucose = Math.round(glucose * decimals) / decimals;
       }
@@ -641,7 +641,7 @@ function init (client, d3) {
           (treatment.protein ? '<strong>' + translate('Protein') + ':</strong> ' + treatment.protein + '<br/>' : '') +
           (treatment.fat ? '<strong>' + translate('Fat') + ':</strong> ' + treatment.fat + '<br/>' : '') +
           (treatment.absorptionTime > 0 ? '<strong>' + translate('Absorption Time') + ':</strong> ' + (Math.round(treatment.absorptionTime / 60.0 * 10) / 10) + 'h' + '<br/>' : '') +
-          (treatment.insulin ? '<strong>' + translate('Insulin') + ':</strong> ' + treatment.insulin + '<br/>' : '') +
+          (treatment.insulin ? '<strong>' + translate('Insulin') + ':</strong> ' + utils.toRoundedStr(treatment.insulin, 2) + '<br/>' : '') +
           (treatment.enteredinsulin ? '<strong>' + translate('Combo Bolus') + ':</strong> ' + treatment.enteredinsulin + 'U, ' + treatment.splitNow + '% : ' + treatment.splitExt + '%, ' + translate('Duration') + ': ' + treatment.duration + '<br/>' : '') +
           (treatment.glucose ? '<strong>' + translate('BG') + ':</strong> ' + glucose + (treatment.glucoseType ? ' (' + translate(treatment.glucoseType) + ')' : '') + '<br/>' : '') +
           (treatment.enteredBy ? '<strong>' + translate('Entered By') + ':</strong> ' + treatment.enteredBy + '<br/>' : '') +
diff --git a/lib/report_plugins/daytoday.js b/lib/report_plugins/daytoday.js
index 47c16cf71a8..c8a8f7c13f7 100644
--- a/lib/report_plugins/daytoday.js
+++ b/lib/report_plugins/daytoday.js
@@ -762,7 +762,7 @@ daytoday.report = function report_daytoday (datastorage, sorteddaystoshow, optio
       }
 
       if (treatment.insulin && options.insulin) {
-        var dataLabel = client.utils.toFixedMin(treatment.insulin,2)+ 'U';
+        var dataLabel = client.utils.toRoundedStr(treatment.insulin, 2)+ 'U';
         context.append('rect')
           .attr('y', yInsulinScale(treatment.insulin))
           .attr('height', chartHeight - yInsulinScale(treatment.insulin))
diff --git a/lib/utils.js b/lib/utils.js
index 083c4284846..7d6d434472e 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -34,12 +34,16 @@ function init(ctx) {
     }
   };
 
-  utils.toFixedMin = function toFixedMin(value,digits) {
+  /**
+   * Round the number to maxDigits places, return a string
+   * that truncates trailing zeros
+   */
+  utils.toRoundedStr = function toRoundedStr (value, maxDigits) {
     if (!value) {
       return '0';
     }
-    var mult = Math.pow(10,digits);
-    var fixed = Math.sign(value) * Math.round(Math.abs(value)*mult) / mult;
+    const mult = Math.pow(10, maxDigits);
+    const fixed = Math.sign(value) * Math.round(Math.abs(value)*mult) / mult;
     if (isNaN(fixed)) return '0';
     return String(fixed);
   };
diff --git a/tests/utils.test.js b/tests/utils.test.js
index 53cccf07507..c6138f47491 100644
--- a/tests/utils.test.js
+++ b/tests/utils.test.js
@@ -17,18 +17,18 @@ describe('utils', function ( ) {
 
   it('format numbers short', function () {
     var undef;
-    utils.toFixedMin(3.345, 2).should.equal('3.35');
-    utils.toFixedMin(5.499999999, 0).should.equal('5');
-    utils.toFixedMin(5.499999999, 1).should.equal('5.5');
-    utils.toFixedMin(5.499999999, 3).should.equal('5.5');
-    utils.toFixedMin(123.45, -2).should.equal('100');
-    utils.toFixedMin(-0.001, 2).should.equal('0');
-    utils.toFixedMin(-2.47, 1).should.equal('-2.5');
-    utils.toFixedMin(-2.44, 1).should.equal('-2.4');
+    utils.toRoundedStr(3.345, 2).should.equal('3.35');
+    utils.toRoundedStr(5.499999999, 0).should.equal('5');
+    utils.toRoundedStr(5.499999999, 1).should.equal('5.5');
+    utils.toRoundedStr(5.499999999, 3).should.equal('5.5');
+    utils.toRoundedStr(123.45, -2).should.equal('100');
+    utils.toRoundedStr(-0.001, 2).should.equal('0');
+    utils.toRoundedStr(-2.47, 1).should.equal('-2.5');
+    utils.toRoundedStr(-2.44, 1).should.equal('-2.4');
 
-    utils.toFixedMin(undef, 2).should.equal('0');
-    utils.toFixedMin(null, 2).should.equal('0');
-    utils.toFixedMin('text', 2).should.equal('0');
+    utils.toRoundedStr(undef, 2).should.equal('0');
+    utils.toRoundedStr(null, 2).should.equal('0');
+    utils.toRoundedStr('text', 2).should.equal('0');
   });
 
   it('merge date and time', function () {