diff --git a/SparkleShare/Linux/About.cs b/SparkleShare/Linux/About.cs
index 6b8c4682..ff4ce8b5 100755
--- a/SparkleShare/Linux/About.cs
+++ b/SparkleShare/Linux/About.cs
@@ -16,6 +16,8 @@
 
 
 using System;
+
+using Sparkles;
 using Gtk;
 
 namespace SparkleShare {
@@ -102,6 +104,9 @@ namespace SparkleShare {
                 Xalign = 0, Xpad = 0
             };
 
+            if (InstallationInfo.Directory.Equals ("/app"))
+                version.Text += " (xdg-app)";
+
             version.StyleContext.AddProvider (label_css_provider, 800);
 
             updates = new Label ("Checking for updates…") {
diff --git a/SparkleShare/Mac/UserInterface/SetupWindow.cs b/SparkleShare/Mac/UserInterface/SetupWindow.cs
index a32fd9af..66628f21 100644
--- a/SparkleShare/Mac/UserInterface/SetupWindow.cs
+++ b/SparkleShare/Mac/UserInterface/SetupWindow.cs
@@ -15,7 +15,6 @@
 //   along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 
-using System;
 using System.Collections.Generic;
 using System.Drawing;
 
diff --git a/configure.ac b/configure.ac
index 9aca857a..e388b1ac 100755
--- a/configure.ac
+++ b/configure.ac
@@ -131,7 +131,7 @@ echo "
 SparkleShare ${VERSION}
 
 Configuration:
-       Prefix : ${prefix}
+       Prefix: ${prefix}
 
 "