diff --git a/CHANGELOG.md b/CHANGELOG.md
index bcdecda3a..e67f813b7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# 4.5.3
+    Fix dock crash if system tray' app is quit.
+
 # 4.5.3
     Minor bug fixes.
 
diff --git a/plugins/network/item/wirelessitem.cpp b/plugins/network/item/wirelessitem.cpp
index 09f92a745..f15a0a682 100644
--- a/plugins/network/item/wirelessitem.cpp
+++ b/plugins/network/item/wirelessitem.cpp
@@ -187,8 +187,9 @@ const QPixmap WirelessItem::backgroundPix(const int size)
 const QPixmap WirelessItem::cachedPix(const QString &key, const int size)
 {
     if (!m_icons.contains(key))
-        m_icons.insert(key, QIcon::fromTheme(key + ".svg",
-                            QIcon(":/wireless/resources/wireless/" + key + ".svg")).pixmap(size));
+//        m_icons.insert(key, QIcon(":/wireless/resources/wireless/" + key + ".svg").pixmap(size));
+    m_icons.insert(key, QIcon::fromTheme(key + ".svg",
+                        QIcon(":/wireless/resources/wireless/" + key + ".svg")).pixmap(size));
 
     return m_icons.value(key);
 }
diff --git a/plugins/network/resources/wireless/wireless-disconnect.svg b/plugins/network/resources/wireless/wireless-disconnect.svg
index 655edba60..8e60bf6c0 100644
--- a/plugins/network/resources/wireless/wireless-disconnect.svg
+++ b/plugins/network/resources/wireless/wireless-disconnect.svg
@@ -1,12 +1,14 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<svg width="48px" height="48px" viewBox="0 0 48 48" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
-    <!-- Generator: Sketch 3.8.3 (29802) - http://www.bohemiancoding.com/sketch -->
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="96px" height="96px" viewBox="0 0 96 96" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <!-- Generator: Sketch 41.2 (35397) - http://www.bohemiancoding.com/sketch -->
     <title>wireless-disconnect</title>
     <desc>Created with Sketch.</desc>
     <defs></defs>
     <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd" stroke-linecap="round" stroke-linejoin="round">
-        <g id="wireless-disconnect" stroke="#FFFFFF" stroke-width="2">
-            <path d="M38.0552595,20.0744361 C34.0000002,17 30,14.9782354 24,15 C18,15.0217646 14,17 10,20.0744359 C10,20.0744357 24.0000002,35 24.0000002,35 C24.0000002,35 38.0552599,19.9869714 38.0552595,20.0744361 Z" id="Oval-53"></path>
+        <g id="wireless-disconnect" stroke="#FFFFFF" stroke-width="4">
+            <g id="Group" transform="translate(20.000000, 27.000000)">
+                <path d="M56,10.9739432 C48.3765476,4.63630764 40,0 28,0 C16,2.92525018e-16 7.59274387,4.74117131 0,10.9739432 L28,41 C28,41 56,10.9739432 56,10.9739432 Z" id="Oval-53"></path>
+            </g>
         </g>
     </g>
 </svg>
\ No newline at end of file