diff --git a/plugins/cleanupNumericValues.js b/plugins/cleanupNumericValues.js
index f7c8a1ee..e37a0534 100644
--- a/plugins/cleanupNumericValues.js
+++ b/plugins/cleanupNumericValues.js
@@ -40,7 +40,7 @@ exports.fn = function(item, params) {
         var floatPrecision = params.floatPrecision;
 
         if (item.hasAttr('viewBox')) {
-            var nums = item.attr('viewBox').value.split(/[ ,]/g);
+            var nums = item.attr('viewBox').value.split(/\s,?\s*|,\s*/g);
             item.attr('viewBox').value = nums.map(function(value) {
                 var num = +value;
                 return isNaN(num) ? value : +num.toFixed(floatPrecision);
@@ -50,7 +50,7 @@ exports.fn = function(item, params) {
         item.eachAttr(function(attr) {
             // The `version` attribute is a text string and cannot be rounded
             if (attr.name === 'version') { return }
-            
+
             var match = attr.value.match(regNumericValues);
 
             // if attribute value matches regNumericValues
diff --git a/test/plugins/cleanupNumericValues.02.svg b/test/plugins/cleanupNumericValues.02.svg
new file mode 100644
index 00000000..fbacfbfb
--- /dev/null
+++ b/test/plugins/cleanupNumericValues.02.svg
@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0, 0, 20, 20">
+    <rect width="20" height="20" fill="rgba(255,255,255,.85)" rx="20"/>
+</svg>
+
+@@@
+
+<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20">
+    <rect width="20" height="20" fill="rgba(255,255,255,.85)" rx="20"/>
+</svg>