diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 487ab648..d0907629 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -3311,6 +3311,7 @@ XML:
   - .rss
   - .scxml
   - .srdf
+  - .storyboard
   - .stTheme
   - .sublime-snippet
   - .targets
@@ -3334,6 +3335,7 @@ XML:
   - .x3d
   - .xacro
   - .xaml
+  - .xib
   - .xlf
   - .xliff
   - .xmi
diff --git a/samples/XML/Application.xib b/samples/XML/Application.xib
new file mode 100644
index 00000000..6c2e5f4d
--- /dev/null
+++ b/samples/XML/Application.xib
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <objects>
+        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner" customClass="UIApplication">
+            <connections>
+                <outlet property="delegate" destination="bYg-Ix-Cfg" id="h4M-LL-qlT"/>
+            </connections>
+        </placeholder>
+        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
+        <customObject id="bYg-Ix-Cfg" userLabel="App Delegate"/>
+        <window opaque="NO" clearsContextBeforeDrawing="NO" contentMode="scaleToFill" id="Na2-4i-xf1">
+            <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+            <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/>
+        </window>
+    </objects>
+</document>
diff --git a/samples/XML/Storyboard.storyboard b/samples/XML/Storyboard.storyboard
new file mode 100644
index 00000000..673e0f7e
--- /dev/null
+++ b/samples/XML/Storyboard.storyboard
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
+    </dependencies>
+    <scenes/>
+</document>