diff --git a/lib/db_x509.cpp b/lib/db_x509.cpp
index bd172ad0..2638d497 100644
--- a/lib/db_x509.cpp
+++ b/lib/db_x509.cpp
@@ -101,7 +101,6 @@ void db_x509::remFromCont(const QModelIndex &idx)
 	pki_base *pki = static_cast<pki_base*>(idx.internalPointer());
 	pki_x509 *child;
 	pki_base *new_parent;
-	QModelIndex new_idx;
 	QList<pki_x509 *> childs;
 
 	while (pki->childCount()) {
diff --git a/widgets/MW_help.cpp b/widgets/MW_help.cpp
index 2bfd3140..deea8fcf 100644
--- a/widgets/MW_help.cpp
+++ b/widgets/MW_help.cpp
@@ -105,6 +105,7 @@ void MainWindow::about()
 	"<tr><td><b>French</b></td><td>Patrick Monnerat &lt;patrick@monnerat.net&gt;</td></tr>"
 	"<tr><td><b>Croatian</b></td><td>Nevenko Bartolincic &lt;nevenko.bartolincic@gmail.com&gt;</td></tr>"
 	"<tr><td><b>Slovak</b></td><td>Slavko &lt;linux@slavino.sk&gt;</td></tr>"
+	"<tr><td><b>Polish</b></td><td>Jacek Tyborowski &lt;jacek@tyborowski.pl&gt;</td></tr>"
 	"</table>").arg(brainpool).arg(version).arg(Entropy::strength())
 			.arg(version_str(true)).arg(getPrefix())
 			.arg(getUserSettingsDir())
diff --git a/widgets/MW_menu.cpp b/widgets/MW_menu.cpp
index 762f7062..a667c842 100644
--- a/widgets/MW_menu.cpp
+++ b/widgets/MW_menu.cpp
@@ -71,6 +71,7 @@ void MainWindow::init_menu()
 		myLang("Russian",  tr("Russian"),  QLocale("ru")) <<
 		myLang("Slovak",   tr("Slovak"),   QLocale("sk")) <<
 		myLang("Spanish",  tr("Spanish"),  QLocale("es")) <<
+		myLang("Polish",   tr("Polish"),   QLocale("pl")) <<
 		myLang("Turkish",  tr("Turkish"),  QLocale("tr"));
 
 	languageMenu = new tipMenu(tr("Language"), this);