diff --git a/gui/readme.txt b/gui/readme.txt
index 5e1b9caf4..9302fac3b 100644
--- a/gui/readme.txt
+++ b/gui/readme.txt
@@ -24,6 +24,7 @@ Linux:
   names depend on distribution, but e.g. for Ubuntu the needed packages are:
   * libqt4-core
   * libqt4-gui
+  * libqt4-xml
   * libqt4-dev
   * qt4-dev-tools
   * qt4-qmake
diff --git a/win_installer/cppcheck.iss b/win_installer/cppcheck.iss
index f738893ea..daa010224 100644
--- a/win_installer/cppcheck.iss
+++ b/win_installer/cppcheck.iss
@@ -102,6 +102,7 @@ Source: {#RuntimesFolder}\msvcr90.dll; DestDir: {app}; Components: Core
 ; QT runtimes
 Source: {#RuntimesFolder}\QtCore4.dll; DestDir: {app}; Components: QTGui
 Source: {#RuntimesFolder}\QtGui4.dll; DestDir: {app}; Components: QTGui
+Source: {#RuntimesFolder}\QtXml4.dll; DestDir: {app}; Components: QTGui
 
 [Icons]
 ; As cppcheck is a program run from command prompt, make icons to open
diff --git a/win_installer/readme.txt b/win_installer/readme.txt
index 517cc4ea7..d6383d78d 100644
--- a/win_installer/readme.txt
+++ b/win_installer/readme.txt
@@ -42,6 +42,7 @@ also. When building QT make sure you build release targets!
 Copy following files to same RuntimesFolder than VS runtime files:
 - QtCore4.dll
 - QtGui4.dll
+- QtXml4.dll
 
 Creating the installer executable:
 #1 Open the ISTool and load cppcheck.iss