diff --git a/CMakeLists.txt b/CMakeLists.txt
index 07bd2c0..57db7e3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -85,20 +85,20 @@ set(DOC_FILES
 )
 
 set(REQUIRED_ICONS
-    window-close
+    dialog-cancel
+    dialog-ok
+    dialog-ok-apply
     document-open
     document-open-recent
-    dialog-ok
-    dialog-cancel
     edit-clear
-    dialog-ok-apply
-    system-file-manager
-    system-run
     go-next
-    qtcreator
-    system-search
     preferences-desktop-icons
     preferences-desktop-locale
+    qtcreator
+    system-file-manager
+    system-run
+    system-search
+    window-close
 )
 
 # meta data
diff --git a/settingsdialog/settingsdialog.cpp b/settingsdialog/settingsdialog.cpp
index d949a56..9548515 100644
--- a/settingsdialog/settingsdialog.cpp
+++ b/settingsdialog/settingsdialog.cpp
@@ -216,7 +216,7 @@ bool SettingsDialog::apply()
         for(OptionPage *page : category->pages()) {
             if(!page->apply()) {
                 if(errorMessage.isEmpty()) {
-                    errorMessage = tr("<p><b>Errors occured when applying changes.</b></p><ul>");
+                    errorMessage = tr("<p><b>Errors occured when applying changes:</b></p><ul>");
                 }
                 if(const_cast<const OptionPage *>(page)->errors().isEmpty()) {
                     errorMessage.append(QStringLiteral("<li><i>")