diff --git a/core/config.cpp b/core/config.cpp
index 37d662f..af96462 100644
--- a/core/config.cpp
+++ b/core/config.cpp
@@ -1,169 +1,187 @@
 /* This file is part of KDevelop
    Copyright 2017 Anton Anikin <anton@anikin.xyz>
 
    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; see the file COPYING. If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 #include "config.h"
 
 #include "debug.h"
 
 #include <qtcompat_p.h>
 
 #include <KShell>
 
 namespace Valgrind
 {
 
 class Config::CmdItem
 {
 public:
     CmdItem(ItemInt* item, const QString& cmdName)
         : CmdItem(static_cast<KConfigSkeletonItem*>(item), cmdName)
     {
         m_type = Int;
     }
 
     CmdItem(ItemBool* item, const QString& cmdName)
         : CmdItem(static_cast<KConfigSkeletonItem*>(item), cmdName)
     {
         m_type = Bool;
     }
 
+    CmdItem(ItemDouble* item, const QString& cmdName)
+        : CmdItem(static_cast<KConfigSkeletonItem*>(item), cmdName)
+    {
+        m_type = Double;
+    }
+
     CmdItem(ItemString* item, const QString& cmdName)
         : CmdItem(static_cast<KConfigSkeletonItem*>(item), cmdName)
     {
         m_type = String;
     }
 
     ~CmdItem() = default;
 
     QString cmdArg()
     {
         QString value;
 
         switch (m_type) {
             case Int:
                 value = QString::number(m_item->property().toInt());
                 break;
 
             case Bool:
                 value = m_item->property().toBool() ? QStringLiteral("yes") : QStringLiteral("no");
                 break;
 
+            case Double:
+                value = QString::number(m_item->property().toDouble(), 'f', 1);
+                break;
+
             case String:
                 value = m_item->property().toString();
                 break;
         }
 
         return QStringLiteral("--%1=%2").arg(m_cmdName, value);
     }
 
 private:
     CmdItem(KConfigSkeletonItem* item, const QString& cmdName)
         : m_item(item)
         , m_cmdName(cmdName)
     {
         Q_ASSERT(item);
         Q_ASSERT(!cmdName.isEmpty());
     }
 
     enum Type
     {
         Int,
         Bool,
+        Double,
         String
     };
 
     KConfigSkeletonItem* m_item;
     QString m_cmdName;
     Type m_type;
 };
 
 Config::Config(const QString& group)
     : m_group(group)
 {
     setCurrentGroup(group);
 
     addItemString(QStringLiteral("extraArgs"), m_extraArgs);
 }
 
 Config::~Config()
 {
     qDeleteAll(m_cmdItems);
 }
 
 inline void addParent(QString& fullName, const KConfigGroup& parent)
 {
     fullName = parent.name() + QLatin1Char('\x1d') + fullName;
 }
 
 // TODO create patch for KCoreConfigSkeleton::setCurrentGroup(const KConfigGroup& group) overload ?
 void Config::setConfigGroup(const KConfigGroup& group)
 {
     setSharedConfig(KSharedConfig::openConfig(group.config()->name(), group.config()->openFlags()));
 
     QString fullName(m_group);
     addParent(fullName, group);
 
     KConfigGroup parentGroup = group.parent();
     while (parentGroup.isValid() && parentGroup.name() != QStringLiteral("<default>")) {
         addParent(fullName, parentGroup);
         parentGroup = parentGroup.parent();
     }
 
     setCurrentGroup(fullName);
 
     const auto allItems = items();
     for (auto item : allItems) {
         item->setGroup(fullName);
     }
 }
 
 QStringList Config::cmdArgs()
 {
     QStringList args;
     for (auto cmdItem : qAsConst(m_cmdItems)) {
         args += cmdItem->cmdArg();
     }
     args += KShell::splitArgs(m_extraArgs);
     args.removeAll(QStringLiteral(""));
 
     return args;
 }
 
 Config::ItemInt* Config::addCmdItemInt(const QString& name, int& reference, int defaultValue, const QString& cmdName)
 {
     auto item = addItemInt(name, reference, defaultValue);
     m_cmdItems += new CmdItem(item, cmdName);
     return item;
 }
 
 Config::ItemBool* Config::addCmdItemBool(const QString& name, bool& reference, bool defaultValue, const QString& cmdName)
 {
     auto item = addItemBool(name, reference, defaultValue);
     m_cmdItems += new CmdItem(item, cmdName);
     return item;
 }
 
+Config::ItemDouble* Config::addCmdItemDouble(const QString& name, double& reference, double defaultValue, const QString& cmdName)
+{
+    auto item = addItemDouble(name, reference, defaultValue);
+    m_cmdItems += new CmdItem(item, cmdName);
+    return item;
+}
+
 Config::ItemString* Config::addCmdItemString(const QString& name, QString& reference, const QString& defaultValue, const QString& cmdName)
 {
     auto item = addItemString(name, reference, defaultValue);
     m_cmdItems += new CmdItem(item, cmdName);
     return item;
 }
 
 }
diff --git a/core/config.h b/core/config.h
index 4fb86db..742f778 100644
--- a/core/config.h
+++ b/core/config.h
@@ -1,53 +1,54 @@
 /* This file is part of KDevelop
    Copyright 2017 Anton Anikin <anton@anikin.xyz>
 
    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; see the file COPYING. If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 #pragma once
 
 #include <KConfigSkeleton>
 
 namespace Valgrind
 {
 
 class Config : public KConfigSkeleton
 {
     Q_OBJECT
 
 public:
     ~Config() override;
 
     void setConfigGroup(const KConfigGroup& group);
 
     ItemInt* addCmdItemInt(const QString& name, int& reference, int defaultValue, const QString& cmdName);
     ItemBool* addCmdItemBool(const QString& name, bool& reference, bool defaultValue, const QString& cmdName);
+    ItemDouble* addCmdItemDouble(const QString& name, double& reference, double defaultValue, const QString& cmdName);
     ItemString* addCmdItemString(const QString& name, QString& reference, const QString& defaultValue, const QString& cmdName);
 
     QStringList cmdArgs();
 
 protected:
     explicit Config(const QString& group);
 
 private:
     QString m_group;
     QString m_extraArgs;
 
     class CmdItem;
     QList<CmdItem*> m_cmdItems;
 };
 
 }