diff --git a/randomwallpaper@iflow.space/prefs.js b/randomwallpaper@iflow.space/prefs.js
index 94829e1..9a373aa 100644
--- a/randomwallpaper@iflow.space/prefs.js
+++ b/randomwallpaper@iflow.space/prefs.js
@@ -161,11 +161,14 @@ var RandomWallpaperSettings = new Lang.Class({
 			this._builder.get_object('unsplash-keyword'),
 			'text',
 			Gio.SettingsBindFlags.DEFAULT);
-		this._unsplash_settings.bind('username',
+		this._unsplash_settings.bind('unsplash-username',
 			this._builder.get_object('unsplash-username'),
 			'text',
 			Gio.SettingsBindFlags.DEFAULT);
-
+		this._unsplash_settings.bind('unsplash-collections',
+			this._builder.get_object('unsplash-collections'),
+			'text',
+			Gio.SettingsBindFlags.DEFAULT);
 		this._unsplash_settings.bind('image-width',
 			this._builder.get_object('unsplash-image-width'),
 			'value',
diff --git a/randomwallpaper@iflow.space/schemas/gschemas.compiled b/randomwallpaper@iflow.space/schemas/gschemas.compiled
index ec85d22..5ec9035 100644
Binary files a/randomwallpaper@iflow.space/schemas/gschemas.compiled and b/randomwallpaper@iflow.space/schemas/gschemas.compiled differ
diff --git a/randomwallpaper@iflow.space/schemas/org.gnome.shell.extensions.space.iflow.randomwallpaper.gschema.xml b/randomwallpaper@iflow.space/schemas/org.gnome.shell.extensions.space.iflow.randomwallpaper.gschema.xml
index 6848933..9bc4ce2 100644
--- a/randomwallpaper@iflow.space/schemas/org.gnome.shell.extensions.space.iflow.randomwallpaper.gschema.xml
+++ b/randomwallpaper@iflow.space/schemas/org.gnome.shell.extensions.space.iflow.randomwallpaper.gschema.xml
@@ -87,11 +87,16 @@
             <summary>Keyword</summary>
             <description>The keyword will be used to search images.</description>
         </key>
-        <key type='s' name='username'>
+        <key type='s' name='unsplash-username'>
             <default>""</default>
             <summary>Username</summary>
             <description>Only fetch random images of a given user.</description>
         </key>
+        <key type='s' name='unsplash-collections'>
+            <default>""</default>
+            <summary>Collections</summary>
+            <description>Only fetch random images from a comma separated list of collections.</description>
+        </key>
         <key type='i' name='image-width'>
             <default>1920</default>
             <summary>Image Width</summary>
diff --git a/randomwallpaper@iflow.space/settings.ui b/randomwallpaper@iflow.space/settings.ui
index b4f0d43..3248240 100644
--- a/randomwallpaper@iflow.space/settings.ui
+++ b/randomwallpaper@iflow.space/settings.ui
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.20.1 -->
+<!-- Generated with glade 3.22.1 -->
 <interface>
   <requires lib="gtk+" version="3.20"/>
   <object class="GtkBox" id="desktopper-settings">
@@ -1007,7 +1007,7 @@ You can also define a prefix that will be added to the image URL.</property>
         <property name="visible">True</property>
         <property name="can_focus">False</property>
         <property name="halign">start</property>
-        <property name="label" translatable="yes">Keyword</property>
+        <property name="label" translatable="yes">Collections</property>
       </object>
       <packing>
         <property name="expand">False</property>
@@ -1016,11 +1016,11 @@ You can also define a prefix that will be added to the image URL.</property>
       </packing>
     </child>
     <child>
-      <object class="GtkEntry" id="unsplash-keyword">
+      <object class="GtkEntry" id="unsplash-collections">
         <property name="visible">True</property>
         <property name="can_focus">True</property>
         <property name="margin_bottom">10</property>
-        <property name="placeholder_text" translatable="yes">Enter a keyword ...</property>
+        <property name="placeholder_text" translatable="yes">ID1, ID2, ...</property>
       </object>
       <packing>
         <property name="expand">False</property>
@@ -1028,6 +1028,32 @@ You can also define a prefix that will be added to the image URL.</property>
         <property name="position">3</property>
       </packing>
     </child>
+    <child>
+      <object class="GtkLabel">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <property name="halign">start</property>
+        <property name="label" translatable="yes">Keyword</property>
+      </object>
+      <packing>
+        <property name="expand">False</property>
+        <property name="fill">True</property>
+        <property name="position">4</property>
+      </packing>
+    </child>
+    <child>
+      <object class="GtkEntry" id="unsplash-keyword">
+        <property name="visible">True</property>
+        <property name="can_focus">True</property>
+        <property name="margin_bottom">10</property>
+        <property name="placeholder_text" translatable="yes">Some keyword ...</property>
+      </object>
+      <packing>
+        <property name="expand">False</property>
+        <property name="fill">True</property>
+        <property name="position">5</property>
+      </packing>
+    </child>
     <child>
       <object class="GtkBox">
         <property name="visible">True</property>
@@ -1116,7 +1142,7 @@ You can also define a prefix that will be added to the image URL.</property>
       <packing>
         <property name="expand">False</property>
         <property name="fill">True</property>
-        <property name="position">4</property>
+        <property name="position">6</property>
       </packing>
     </child>
     <child>
@@ -1183,7 +1209,7 @@ You can also define a prefix that will be added to the image URL.</property>
         <property name="expand">False</property>
         <property name="fill">True</property>
         <property name="padding">10</property>
-        <property name="position">5</property>
+        <property name="position">7</property>
       </packing>
     </child>
   </object>
diff --git a/randomwallpaper@iflow.space/sourceAdapter.js b/randomwallpaper@iflow.space/sourceAdapter.js
index 12ac24b..c4ec1fc 100644
--- a/randomwallpaper@iflow.space/sourceAdapter.js
+++ b/randomwallpaper@iflow.space/sourceAdapter.js
@@ -51,7 +51,7 @@ var BaseAdapter = new Lang.Class({
 
 		try {
 			return uri !== decodeURIComponent(uri);
-		} catch(err) {
+		} catch (err) {
 			this.logger.error(err);
 			return false;
 		}
@@ -112,6 +112,7 @@ var UnsplashAdapter = new Lang.Class({
 	options: {
 		'username': '',
 		'query': '',
+		'collections': [],
 		'w': 1920,
 		'h': 1080,
 		'featured': false
@@ -179,11 +180,16 @@ var UnsplashAdapter = new Lang.Class({
 	_readOptionsFromSettings: function () {
 		this.options.query = this._settings.get('unsplash-keyword', 'string');
 
-		this.options.username = this._settings.get('username', 'string');
+		this.options.username = this._settings.get('unsplash-username', 'string');
 		if (this.options.username && this.options.username[0] === '@') {
 			this.options.username = this.options.username.substring(1); // remove @ prefix
 		}
 
+		this.options.collections = this._settings.get('unsplash-collections', 'string').split(',').map(
+			(elem) => {
+				return elem.trim();
+			});
+
 		this.options.w = this._settings.get('image-width', 'int');
 		this.options.h = this._settings.get('image-height', 'int');