diff --git a/src/gui/dialogs/formmain.cpp b/src/gui/dialogs/formmain.cpp
index d856525d0..238527d88 100755
--- a/src/gui/dialogs/formmain.cpp
+++ b/src/gui/dialogs/formmain.cpp
@@ -283,6 +283,9 @@ void FormMain::setupIcons() {
 
   // Setup icons on TabWidget too.
   m_ui->m_tabWidget->setupIcons();
+
+  // Most of icons are loaded, clear the cache.
+  qApp->icons()->clearCache();
 }
 
 void FormMain::loadSize() {
diff --git a/src/miscellaneous/iconfactory.cpp b/src/miscellaneous/iconfactory.cpp
index f0b1710b8..5bcf2ac8f 100755
--- a/src/miscellaneous/iconfactory.cpp
+++ b/src/miscellaneous/iconfactory.cpp
@@ -57,6 +57,10 @@ QByteArray IconFactory::toByteArray(const QIcon &icon) {
   return array.toBase64();
 }
 
+void IconFactory::clearCache() {
+  m_cachedIcons.clear();
+}
+
 void IconFactory::setupSearchPaths() {
   QIcon::setThemeSearchPaths(QStringList() << APP_THEME_PATH);
   qDebug("Available icon theme paths: %s.",
diff --git a/src/miscellaneous/iconfactory.h b/src/miscellaneous/iconfactory.h
index 945410010..c550c977e 100755
--- a/src/miscellaneous/iconfactory.h
+++ b/src/miscellaneous/iconfactory.h
@@ -44,6 +44,8 @@ class IconFactory : public QObject {
     QIcon fromByteArray(QByteArray array);
     QByteArray toByteArray(const QIcon &icon);
 
+    void clearCache();
+
     // Returns icon from active theme or invalid icon if
     // "no icon theme" is set.
     inline QIcon fromTheme(const QString &name) {