diff --git a/debugger/CMakeLists.txt b/debugger/CMakeLists.txt
--- a/debugger/CMakeLists.txt
+++ b/debugger/CMakeLists.txt
@@ -17,6 +17,7 @@
     variable/variablewidget.cpp
     variable/variablecollection.cpp
     variable/variabletooltip.cpp
+    variable/variablesortmodel.cpp
     framestack/framestackmodel.cpp
     framestack/framestackwidget.cpp
 )
diff --git a/debugger/variable/variablesortmodel.h b/debugger/variable/variablesortmodel.h
new file mode 100644
--- /dev/null
+++ b/debugger/variable/variablesortmodel.h
@@ -0,0 +1,45 @@
+/*
+ * KDevelop Debugger Support
+ *
+ * Copyright 2016 Mikhail Ivchenko <ematirov@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef KDEVPLATFORM_VARIABLESORTMODEL_H
+#define KDEVPLATFORM_VARIABLESORTMODEL_H
+
+#include <QSortFilterProxyModel>
+
+class QModelIndex;
+
+namespace KDevelop
+{
+
+class VariableSortProxyModel : public QSortFilterProxyModel
+{
+    Q_OBJECT
+
+public:
+    VariableSortProxyModel(QObject *parent = nullptr);
+
+protected:
+    bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;
+};
+
+}
+
+#endif
diff --git a/debugger/variable/variablesortmodel.cpp b/debugger/variable/variablesortmodel.cpp
new file mode 100644
--- /dev/null
+++ b/debugger/variable/variablesortmodel.cpp
@@ -0,0 +1,46 @@
+/*
+ * KDevelop Debugger Support
+ *
+ * Copyright 2016 Mikhail Ivchenko <ematirov@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "variablesortmodel.h"
+
+#include <QSortFilterProxyModel>
+#include <QCollator>
+
+namespace KDevelop
+{
+
+VariableSortProxyModel::VariableSortProxyModel(QObject *parent)
+    : QSortFilterProxyModel(parent)
+{
+}
+
+bool VariableSortProxyModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
+{
+    QCollator collator;
+    collator.setNumericMode(true);
+    collator.setCaseSensitivity(Qt::CaseInsensitive);
+    const QString leftString = sourceModel()->data(left).toString();
+    const QString rightString = sourceModel()->data(right).toString();
+    int result = collator.compare(leftString, rightString);
+    return result < 0;
+}
+
+}
diff --git a/debugger/variable/variablewidget.cpp b/debugger/variable/variablewidget.cpp
--- a/debugger/variable/variablewidget.cpp
+++ b/debugger/variable/variablewidget.cpp
@@ -31,6 +31,7 @@
 #include <interfaces/idebugcontroller.h>
 #include "../interfaces/ivariablecontroller.h"
 #include "variablecollection.h"
+#include "variablesortmodel.h"
 #include "util/debug.h"
 
 /** The variables widget is passive, and is invoked by the rest of the
@@ -76,7 +77,7 @@
     setWindowIcon(QIcon::fromTheme("debugger"));
     setWindowTitle(i18n("Debugger Variables"));
 
-    m_proxy = new QSortFilterProxyModel;
+    m_proxy = new VariableSortProxyModel;
     varTree_ = new VariableTree(controller, this, m_proxy);
     setFocusProxy(varTree_);