diff --git a/src/data/ui/BackgroundButton.ui b/src/data/ui/BackgroundButton.ui
index edbf4f0..d55d6d0 100644
--- a/src/data/ui/BackgroundButton.ui
+++ b/src/data/ui/BackgroundButton.ui
@@ -36,6 +36,7 @@ SPDX-License-Identifier: GPL-3.0-or-later
         <mime-types>
           <mime-type>image/jpeg</mime-type>
           <mime-type>image/png</mime-type>
+          <mime-type>image/svg+xml</mime-type>
           <mime-type>image/tiff</mime-type>
           <mime-type>application/xml</mime-type>
         </mime-types>
diff --git a/src/po/nightthemeswitcher@romainvigier.fr.pot b/src/po/nightthemeswitcher@romainvigier.fr.pot
index d851b35..1e54c3f 100644
--- a/src/po/nightthemeswitcher@romainvigier.fr.pot
+++ b/src/po/nightthemeswitcher@romainvigier.fr.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: nightthemeswitcher@romainvigier.fr\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2022-04-05 12:01+0200\n"
+"POT-Creation-Date: 2022-04-26 22:37+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -425,36 +425,36 @@ msgstr ""
 msgid ":"
 msgstr ""
 
-#: src/modules/TimerOndemand.js:212
+#: src/modules/TimerOndemand.js:213
 msgid "Turn Night Mode Off"
 msgstr ""
 
-#: src/modules/TimerOndemand.js:212
+#: src/modules/TimerOndemand.js:213
 msgid "Turn Night Mode On"
 msgstr ""
 
-#: src/modules/TimerOndemand.js:227
+#: src/modules/TimerOndemand.js:228
 msgid "Extension Settings"
 msgstr ""
 
-#: src/modules/TimerOndemand.js:235
+#: src/modules/TimerOndemand.js:237
 msgid "Night Mode Off"
 msgstr ""
 
-#: src/modules/TimerOndemand.js:235
+#: src/modules/TimerOndemand.js:237
 msgid "Night Mode On"
 msgstr ""
 
-#: src/modules/TimerOndemand.js:236
+#: src/modules/TimerOndemand.js:238
 msgid "Turn Off"
 msgstr ""
 
-#: src/modules/TimerOndemand.js:236
+#: src/modules/TimerOndemand.js:238
 msgid "Turn On"
 msgstr ""
 
-#: src/preferences/BackgroundButton.js:71
-msgid "Only JPEG, PNG, TIFF and XML files can be set as background image."
+#: src/preferences/BackgroundButton.js:74
+msgid "Only JPEG, PNG, TIFF, SVG and XML files can be set as background image."
 msgstr ""
 
 #: src/preferences/SchedulePage.js:48
diff --git a/src/preferences/BackgroundButton.js b/src/preferences/BackgroundButton.js
index 01e712f..5afde20 100644
--- a/src/preferences/BackgroundButton.js
+++ b/src/preferences/BackgroundButton.js
@@ -62,6 +62,7 @@ var BackgroundButton = GObject.registerClass({
             if (
                 Gio.content_type_equals(contentType, 'image/jpeg') ||
                 Gio.content_type_equals(contentType, 'image/png') ||
+                Gio.content_type_equals(contentType, 'image/svg+xml') ||
                 Gio.content_type_equals(contentType, 'image/tiff') ||
                 Gio.content_type_equals(contentType, 'application/xml')
             ) {
@@ -70,7 +71,7 @@ var BackgroundButton = GObject.registerClass({
             } else {
                 if (this.root instanceof Adw.PreferencesWindow) {
                     this.root.add_toast(new Adw.Toast({
-                        title: _('Only JPEG, PNG, TIFF and XML files can be set as background image.'),
+                        title: _('Only JPEG, PNG, TIFF, SVG and XML files can be set as background image.'),
                         timeout: 10,
                     }));
                 }
@@ -109,6 +110,7 @@ var BackgroundButton = GObject.registerClass({
         if (
             Gio.content_type_equals(contentType, 'image/jpeg') ||
             Gio.content_type_equals(contentType, 'image/png') ||
+            Gio.content_type_equals(contentType, 'image/svg+xml') ||
             Gio.content_type_equals(contentType, 'image/tiff')
         ) {
             path = file.get_path();