diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index ea33e612..dc824387 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -2296,6 +2296,7 @@ XML:
   - .launch
   - .mxml
   - .nproj
+  - .nuspec
   - .osm
   - .plist
   - .pluginspec
diff --git a/samples/XML/sample.nuspec b/samples/XML/sample.nuspec
new file mode 100644
index 00000000..238c325a
--- /dev/null
+++ b/samples/XML/sample.nuspec
@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
+  <metadata>
+    <id>Sample</id>
+    <title>Sample</title>
+    <version>0.101.0</version>
+    <authors>Hugh Bot</authors>
+    <owners>Hugh Bot</owners>
+    <summary>A package of nuget</summary>
+    <description>
+      It just works
+    </description>
+    <projectUrl>http://hubot.github.com</projectUrl>
+    <copyright/>
+    <licenseUrl>https://github.com/github/hubot/LICENSEmd</licenseUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+  </metadata>
+  <files>
+    <file src="tools\**" target="tools"/>
+  </files>
+</package>