diff --git a/CMakeLists.txt b/CMakeLists.txt
index 132873faa..a9a686b41 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -156,6 +156,12 @@ if (NOT DEFINED ICONSDIR)
     endif (UNIX)
 endif (NOT DEFINED ICONSDIR)
 
+if (NOT DEFINED APPDATADIR)
+    if (UNIX)
+        set (APPDATADIR "${CMAKE_INSTALL_PREFIX}/share/appdata")
+    endif (UNIX)
+endif (NOT DEFINED APPDATADIR)
+
 # non-bundle builds has to use absolute paths
 if (NOT BUILD_BUNDLE AND
     NOT (IS_ABSOLUTE "${BINDIR}" AND IS_ABSOLUTE "${DATADIR}" AND IS_ABSOLUTE "${LIBDIR}" AND
@@ -352,6 +358,7 @@ if (WIN32)
 endif (WIN32)
 if (UNIX)
   install (FILES "${PROJECT_SOURCE_DIR}/doc/manpage/rawtherapee.1" DESTINATION "${CMAKE_INSTALL_PREFIX}/share/man/man1")
+  install (FILES rawtherapee.appdata.xml DESTINATION "${APPDATADIR}")
 endif (UNIX)
 
 add_subdirectory (rtexif)
diff --git a/rawtherapee.appdata.xml b/rawtherapee.appdata.xml
new file mode 100644
index 000000000..01da61714
--- /dev/null
+++ b/rawtherapee.appdata.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 2014 Maciej Dworak www.londonlight.org -->
+<application>
+  <id type="desktop">rawtherapee.desktop</id>
+  <metadata_license>CC-BY-SA-4.0</metadata_license>
+  <project_license>GPL-3.0+</project_license>
+  <name>RawTherapee</name>
+  <summary>A powerful cross-platform raw image processing program</summary>
+  <description>
+    <p>
+      RawTherapee is a powerful raw image processing program. All the internal calculations are done in a high precision 32-bit floating point engine which facilitates non-destructive editing. Images are opened directly without the hassle of having to import them. Adjustments made by the user are immediately reflected in the preview and saved to a separate sidecar file. These adjustments are then applied during the export process, or can be copied (fully and partially) onto other images, thereby allowing easy batch image processing.
+    </p>
+    <p>
+      All aspects of RawTherapee are documented in the RawPedia wiki. There is also an active forum and IRC channel for interaction with the developers and other users.
+    </p>
+    Supported input formats:
+    <ul>
+      <li>Most raw formats including those from Bayer and X-Trans type sensors</li>
+      <li>HDR DNG 1.4 with floating-point data</li>
+      <li>8-bit, 16-bit and 32-bit TIFF (RGB)</li>
+      <li>8-bit and 16-bit PNG (RGB)</li>
+      <li>JPEG</li>
+    </ul>
+    Supported output formats:
+    <ul>
+      <li>JPEG</li>
+      <li>8-bit and 16-bit TIFF</li>
+      <li>8-bit and 16-bit PNG</li>
+    </ul>
+  </description>
+  <screenshots>
+    <screenshot type="default">http://rawtherapee.com/images/screenshots/rt-42_07-hdr-landscape.jpg</screenshot>
+    <screenshot>http://rawtherapee.com/images/screenshots/rt-42_03-macro-detail-toning.jpg</screenshot>
+    <screenshot>http://rawtherapee.com/images/screenshots/rt-42_05-cow-bw-toning.jpg</screenshot>
+    <screenshot>http://rawtherapee.com/images/screenshots/rt-42_08-fb-metadata.jpg</screenshot>
+    <screenshot>http://rawtherapee.com/images/screenshots/rt-42_09-queue.jpg</screenshot>
+  </screenshots>
+  <url type="homepage">http://rawtherapee.com/</url>
+  <updatecontact>contactus_at_rawtherapee.com</updatecontact>
+</application>