diff --git a/README.md b/README.md
index 9e62b11..1ae02cb 100644
--- a/README.md
+++ b/README.md
@@ -58,14 +58,13 @@ https://github.com/adamgruber/mochawesome
 ### JUnit
 
 - Converts  **<properties>**, **<system-out>** and **<system-err>** elements to Mochawesome test context.
-- Nested test suites currently not supported.
+- Nested test suites only supported when using `transformJunit: true` option. This will flatten nested test suites.
 
 ### NUnit
 
 - NUnit XML version 3 and higher is supported.
 - Converts **<properties>** elements to JUnit **<properties>**.
 - Converts **<output>** elements to JUnit **<system-out>**.
-- Nested `test-suite` elements are flattened.
 
 ### xUnit.net  
 
@@ -88,7 +87,7 @@ https://github.com/adamgruber/mochawesome
 ### Usage
 
 ```bash
-npm i mochawesome-converter
+npm i --save-dev mochawesome-converter
 ```
 
 ```js
@@ -100,30 +99,32 @@ let options = {
     junit: true
 }
 
-convert(options).then(() => console.log(`Report created: ${options.reportDir}/${options.reportFilename}`));
+convert(options).then(() => console.log(`Mochawesome report created`));
 ```
 
 ### Options
 
-| Option                    | Type    | Default                   | Description                                  |
-|:--------------------------|:--------|:--------------------------|:---------------------------------------------|
-| `testFile` **(required)** | string  |                           | Path to test file for conversion             |
-| `testType` **(required)** | string  |                           | Test report type                             |
-| `reportDir`               | string  | ./report                  | Converted report output path                 |
-| `reportFilename`          | string  | mochawesome.json          | Mochawesome report name                      |
-| `junit`                   | boolean | false                     | Create JUnit report?                         |
-| `junitReportFilename`     | string  | `testFile.name`-junit.xml | JUnit report file name                       |
-| `html`                    | boolean | false                     | Create Mochawesome HTML?                     |
-| `htmlReportFilename`      | string  | mochawesome.html          | Mochawesome HTML file name                   |
-| `skippedAsPending`        | boolean | true                      | Show skipped tests as pending in Mochawesome |
-| `switchClassnameAndName`  | boolean | false                     | Switch test case classname and name          |
+| Option                    | Type    | Default                   | Description                                       |
+|:--------------------------|:--------|:--------------------------|:--------------------------------------------------|
+| `testFile` **(required)** | string  |                           | Path to test file for conversion                  |
+| `testType` **(required)** | string  |                           | Test report type                                  |
+| `reportDir`               | string  | ./report                  | Converted report output path                      |
+| `reportFilename`          | string  | mochawesome.json          | Mochawesome report name                           |
+| `junit`                   | boolean | false                     | Create JUnit report?                              |
+| `junitReportFilename`     | string  | `testFile.name`-junit.xml | JUnit report file name                            |
+| `transformJunit`          | boolean | false                     | Transform JUnit test file with nested test suites |
+| `html`                    | boolean | false                     | Create Mochawesome HTML?                          |
+| `htmlReportFilename`      | string  | mochawesome.html          | Mochawesome HTML file name                        |
+| `skippedAsPending`        | boolean | true                      | Show skipped tests as pending in Mochawesome      |
+| `switchClassnameAndName`  | boolean | false                     | Switch test case classname and name               |
 
 - `testFile` - relative or absolute path to input test file.
 - `testType` - type of test report, not case-sensitive.
 - `reportDir` - will be created if path does not exist.
 - `skippedAsPending` - Mocha always reports skipped tests as pending and this is default behaviour of converter. 
   Set to `false` to display tests as skipped.
-- `switchClassnameAndName` - Switches classname and name attributes of testcase in case your test naming data is generated in reverse order.
+- `switchClassnameAndName` - Switches classname and name attributes of testcase if your test naming data is generated in reverse order.
+- `transformJunit` - Uses XSLT processor to flatten any nested JUnit test suites. Setting `junit: true` will produce processed JUnit file.
 
 #### Supported `testType` options.
 
diff --git a/src/nunit-junit.xslt b/src/nunit-junit.xslt
index 78546dc..0a44b23 100644
--- a/src/nunit-junit.xslt
+++ b/src/nunit-junit.xslt
@@ -61,6 +61,7 @@
       </xsl:if>
       <xsl:apply-templates select="properties"/>
       <xsl:apply-templates select="output"/>
+      <xsl:apply-templates select="test-case"/>
     </testcase>
   </xsl:template>
 
diff --git a/src/xunit-junit.xslt b/src/xunit-junit.xslt
index 4ae392f..3267b19 100644
--- a/src/xunit-junit.xslt
+++ b/src/xunit-junit.xslt
@@ -1,28 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
-<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-                xmlns:csl="http://www.w3.org/1999/XSL/Transform">
+<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
   <xsl:output method="xml" encoding="UTF-8" indent="yes" omit-xml-declaration="yes"/>
 
 <!--  <xsl:template match="/assemblies">-->
-<!--    <xsl:variable name="tests" select="sum(assembly/@total)"/>-->
-<!--    <xsl:variable name="time" select="format-number(sum(assembly/@time), '0.0000')"/>-->
-<!--    <xsl:variable name="errors" select="sum(assembly/@errors)"/>-->
-<!--    <xsl:variable name="failed" select="sum(assembly/@failed)"/>-->
-<!--    <xsl:variable name="skipped" select="sum(assembly/@skipped)"/>-->
-<!--    <testsuites tests="{$tests}" time="{$time}" errors="{$errors}" failures="{$failed}" skipped="{$skipped}">-->
-<!--      <xsl:for-each select="assembly">-->
-<!--        <xsl:sort  select="name"/>-->
-<!--        <xsl:variable name="assemblyFileName">-->
-<!--          <xsl:call-template name="substring-after-last">-->
-<!--            <xsl:with-param name="string" select="@name" />-->
-<!--            <xsl:with-param name="delimiter" select="'\'" />-->
-<!--          </xsl:call-template>-->
-<!--        </xsl:variable>-->
-<!--        <xsl:apply-templates select="collection"/>-->
-<!--      </xsl:for-each>-->
-<!--    </testsuites>-->
+<!--    <xsl:apply-templates/>-->
 <!--  </xsl:template>-->
 
+<!--  <xsl:template match="assembly">-->
   <xsl:template match="assemblies/assembly">
     <xsl:variable name="timeStamp">
       <xsl:value-of select="concat(@run-date, 'T', translate(@run-time, ',', '.'))" />