diff --git a/data/misc/htm.desktop.in b/data/misc/io.github.Hexchat.ThemeManager.desktop.in
similarity index 100%
rename from data/misc/htm.desktop.in
rename to data/misc/io.github.Hexchat.ThemeManager.desktop.in
diff --git a/data/misc/htm-mime.xml b/data/misc/io.github.Hexchat.ThemeManager.xml
similarity index 100%
rename from data/misc/htm-mime.xml
rename to data/misc/io.github.Hexchat.ThemeManager.xml
diff --git a/data/misc/hexchat.appdata.xml.in b/data/misc/io.github.Hexchat.appdata.xml.in
similarity index 94%
rename from data/misc/hexchat.appdata.xml.in
rename to data/misc/io.github.Hexchat.appdata.xml.in
index 7ffaf3dc..97949597 100644
--- a/data/misc/hexchat.appdata.xml.in
+++ b/data/misc/io.github.Hexchat.appdata.xml.in
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <component type="desktop">
-  <id>hexchat.desktop</id>
+  <id>io.github.Hexchat.desktop</id>
   <name>HexChat</name>
   <developer_name>HexChat</developer_name>
   <metadata_license>CC0-1.0</metadata_license>
@@ -22,6 +22,10 @@
       <caption>Main Chat Window</caption>
     </screenshot>
   </screenshots>
+  <provides>
+    <!-- Renamed from this -->
+    <id>hexchat.desktop</id>
+  </provides>
   <releases>
     <release date="2016-12-10" version="2.12.4">
       <description>
diff --git a/data/misc/hexchat.desktop.in.in b/data/misc/io.github.Hexchat.desktop.in.in
similarity index 100%
rename from data/misc/hexchat.desktop.in.in
rename to data/misc/io.github.Hexchat.desktop.in.in
diff --git a/data/misc/meson.build b/data/misc/meson.build
index b5532d63..9ece6192 100644
--- a/data/misc/meson.build
+++ b/data/misc/meson.build
@@ -3,8 +3,8 @@ desktop_utils = find_program('desktop-file-validate', required: false)
 
 if get_option('with-gtk')
   hexchat_appdata = i18n.merge_file(
-    input: 'hexchat.appdata.xml.in',
-    output: 'hexchat.appdata.xml',
+    input: 'io.github.Hexchat.appdata.xml.in',
+    output: 'io.github.Hexchat.appdata.xml',
     po_dir: '../../po',
     install: true,
     install_dir: join_paths(get_option('datadir'), 'appdata')
@@ -12,7 +12,7 @@ if get_option('with-gtk')
 
   appstream_util = find_program('appstream-util', required: false)
   if appstream_util.found()
-    test('Validate hexchat.appdata.xml', appstream_util,
+    test('Validate io.github.Hexchat.appdata.xml', appstream_util,
       args: ['validate', hexchat_appdata]
     )
   endif
@@ -25,14 +25,14 @@ if get_option('with-gtk')
   endif
 
   desktop_file = configure_file(
-    input: 'hexchat.desktop.in.in',
-    output: 'hexchat.desktop.in',
+    input: 'io.github.Hexchat.desktop.in.in',
+    output: 'io.github.Hexchat.desktop.in',
     configuration: desktop_conf
   )
 
   hexchat_desktop = i18n.merge_file(
     input: desktop_file,
-    output: 'hexchat.desktop',
+    output: 'io.github.Hexchat.desktop',
     po_dir: '../../po',
     type: 'desktop',
     install: true,
@@ -40,7 +40,7 @@ if get_option('with-gtk')
   )
 
   if desktop_utils.found()
-    test('Validate hexchat.desktop', desktop_utils,
+    test('Validate io.github.Hexchat.desktop', desktop_utils,
       args: [hexchat_desktop]
     )
   endif
@@ -48,8 +48,8 @@ endif
 
 if get_option('with-theme-manager')
   htm_desktop = i18n.merge_file(
-    input: 'htm.desktop.in',
-    output: 'htm.desktop',
+    input: 'io.github.Hexchat.ThemeManager.desktop.in',
+    output: 'io.github.Hexchat.ThemeManager.desktop',
     po_dir: '../../po',
     type: 'desktop',
     install: true,
@@ -57,12 +57,12 @@ if get_option('with-theme-manager')
   )
 
   if desktop_utils.found()
-    test('Validate htm.desktop', desktop_utils,
+    test('Validate io.github.Hexchat.ThemeManager.desktop', desktop_utils,
       args: [htm_desktop]
     )
   endif
 
-  install_data('htm-mime.xml',
+  install_data('io.github.Hexchat.ThemeManager.xml',
     install_dir: join_paths(get_option('datadir'), 'mime/packages')
   )
 endif
diff --git a/po/POTFILES b/po/POTFILES
index 057c9d72..0d1795d1 100644
--- a/po/POTFILES
+++ b/po/POTFILES
@@ -1,6 +1,6 @@
-data/misc/hexchat.appdata.xml.in
-data/misc/hexchat.desktop.in.in
-data/misc/htm.desktop.in
+data/misc/io.github.Hexchat.appdata.xml.in
+data/misc/io.github.Hexchat.desktop.in.in
+data/misc/io.github.Hexchat.ThemeManager.desktop.in
 src/common/cfgfiles.c
 src/common/chanopt.c
 src/common/dcc.c
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
index 915e82d8..d3018f49 100644
--- a/po/POTFILES.skip
+++ b/po/POTFILES.skip
@@ -1 +1 @@
-data/misc/hexchat.desktop.in.in
+data/misc/io.github.Hexchat.desktop.in.in
diff --git a/src/fe-gtk/notifications/notification-libnotify.c b/src/fe-gtk/notifications/notification-libnotify.c
index aa2d087a..ee417396 100644
--- a/src/fe-gtk/notifications/notification-libnotify.c
+++ b/src/fe-gtk/notifications/notification-libnotify.c
@@ -40,9 +40,9 @@ notification_backend_show (const char *title, const char *text)
 	notification = notify_notification_new (title, text, "hexchat", NULL);
 #endif
 #if NOTIFY_CHECK_VERSION(0,6,0)
-	notify_notification_set_hint (notification, "desktop-entry", g_variant_new_string ("hexchat"));
+	notify_notification_set_hint (notification, "desktop-entry", g_variant_new_string ("io.github.Hexchat"));
 #else
-	notify_notification_set_hint_string (notification, "desktop-entry", "hexchat");
+	notify_notification_set_hint_string (notification, "desktop-entry", "io.github.Hexchat");
 #endif
 
 	notify_notification_show (notification, NULL);