diff --git a/README.md b/README.md
index 4938873f..0f82675c 100644
--- a/README.md
+++ b/README.md
@@ -547,3 +547,13 @@ To address query schema issue, after installaing the plugin you can edit the iOS
 ```
 
 The advantage with this method is that editing is done in the config.xml file which will most often be in your source control anyway and hence, changes to it will be reserved.
+
+## 9. NSPhotoLibraryUsageDescription on iOS
+
+This plugin requires permissions to the users photos. On iOS 10+, it is required that you provide a description for this access.
+
+The plugin configures a default description for you. If you do need to customise it, you can set a Cordova variable when installing:
+
+```
+$ cordova plugin add cordova-plugin-x-socialsharing --variable PHOTO_LIBRARY_USAGE_DESCRIPTION="This app uses your photo library" --variable PHOTO_LIBRARY_ADD_USAGE_DESCRIPTION="This app saves images your photo library"
+```
diff --git a/plugin.xml b/plugin.xml
index ea7e62ca..fa59957c 100755
--- a/plugin.xml
+++ b/plugin.xml
@@ -41,12 +41,14 @@
       </feature>
     </config-file>
 
+    <preference name="PHOTO_LIBRARY_ADD_USAGE_DESCRIPTION" default="This app requires photo library access to function properly." />
     <config-file target="*-Info.plist" parent="NSPhotoLibraryAddUsageDescription">
-      <string>This app requires photo library access to function properly.</string>
+      <string>$PHOTO_LIBRARY_ADD_USAGE_DESCRIPTION</string>
     </config-file>
 
+    <preference name="PHOTO_LIBRARY_USAGE_DESCRIPTION" default="This app requires photo library access to function properly." />
     <config-file target ="*-Info.plist" parent="NSPhotoLibraryUsageDescription">
-      <string>This app requires photo library access to function properly.</string>
+      <string>$PHOTO_LIBRARY_USAGE_DESCRIPTION</string>
     </config-file>
 
     <header-file src="src/ios/NSString+SSURLEncoding.h"/>