diff --git a/lib/pixrem.js b/lib/pixrem.js
index ad70315..eafb603 100755
--- a/lib/pixrem.js
+++ b/lib/pixrem.js
@@ -27,7 +27,7 @@ module.exports = postcss.plugin('pixrem', function (opts) {
     if (detectBrowser(options.browsers, 'ie <= 8')) {
       isIElte8 = true;
     }
-    if (detectBrowser(options.browsers, 'ie >= 9')) {
+    if (detectBrowser(options.browsers, 'ie 9')) {
       isIEgte9 = true;
     }
     if (detectBrowser(options.browsers, 'ie 9, ie 10')) {
@@ -157,4 +157,4 @@ function reduceLineBreaks (value) {
 function rounded (value, precision) {
   precision = Math.pow(10, precision);
   return Math.floor(value * precision) / precision;
-}
\ No newline at end of file
+}