diff --git a/src/core/lvmdevice.cpp b/src/core/lvmdevice.cpp
index 26ec0c4..814870e 100644
--- a/src/core/lvmdevice.cpp
+++ b/src/core/lvmdevice.cpp
@@ -192,7 +192,7 @@ QList<QString> LvmDevice::lvPathList() const
     return getLVs(name());
 }
 
-qint32 LvmDevice::getPeSize(const QString& vgname)
+qint64 LvmDevice::getPeSize(const QString& vgname)
 {
     QString val = getField(QStringLiteral("vg_extent_size"), vgname);
     return val.isEmpty() ? -1 : val.toInt();
@@ -204,12 +204,12 @@ qint64 LvmDevice::getTotalPE(const QString& vgname)
     return val.isEmpty() ? -1 : val.toInt();
 }
 
-qint32 LvmDevice::getAllocatedPE(const QString& vgname)
+qint64 LvmDevice::getAllocatedPE(const QString& vgname)
 {
     return getTotalPE(vgname) - getFreePE(vgname);
 }
 
-qint32 LvmDevice::getFreePE(const QString& vgname)
+qint64 LvmDevice::getFreePE(const QString& vgname)
 {
     QString val =  getField(QStringLiteral("vg_free_count"), vgname);
     return val.isEmpty() ? -1 : val.toInt();
@@ -250,7 +250,7 @@ QString LvmDevice::getField(const QString& fieldName, const QString& vgname)
     return QString();
 }
 
-qint32 LvmDevice::getTotalLE(const QString& lvpath)
+qint64 LvmDevice::getTotalLE(const QString& lvpath)
 {
     ExternalCommand cmd(QStringLiteral("lvm"),
             { QStringLiteral("lvdisplay"),
diff --git a/src/core/lvmdevice.h b/src/core/lvmdevice.h
index ce30fee..56cd6c3 100644
--- a/src/core/lvmdevice.h
+++ b/src/core/lvmdevice.h
@@ -52,14 +52,14 @@ public:
     QList<Partition*> scanPartitions(const LvmDevice& dev, PartitionTable* pTable) const;
     Partition* scanPartition(const QString& lvPath, const LvmDevice& dev, PartitionTable* pTable) const;
 
-    static qint32 getPeSize(const QString& vgname);
+    static qint64 getPeSize(const QString& vgname);
     static qint64 getTotalPE(const QString& vgname);
-    static qint32 getAllocatedPE(const QString& vgname);
-    static qint32 getFreePE(const QString& vgname);
+    static qint64 getAllocatedPE(const QString& vgname);
+    static qint64 getFreePE(const QString& vgname);
     static QString getUUID(const QString& vgname);
     static QString getField(const QString& fieldName, const QString& vgname = QString());
 
-    static qint32 getTotalLE(const QString& lvpath);
+    static qint64 getTotalLE(const QString& lvpath);
 
     static QStringList getPVs(const QString& vgname);
     static QStringList getLVs(const QString& vgname);
@@ -83,16 +83,16 @@ protected:
     QList<QString> lvPathList() const;
 
 public:
-    qint32 peSize() const {
+    qint64 peSize() const {
         return m_peSize;
     }
     qint64 totalPE() const {
         return m_totalPE;
     }
-    qint32 allocatedPE() const {
+    qint64 allocatedPE() const {
         return m_allocPE;
     }
-    qint32 freePE() const {
+    qint64 freePE() const {
         return m_freePE;
     }
     QString UUID() const {
@@ -100,10 +100,10 @@ public:
     }
 
 private:
-    qint32 m_peSize;
+    qint64 m_peSize;
     qint64 m_totalPE;
-    qint32 m_allocPE;
-    qint32 m_freePE;
+    qint64 m_allocPE;
+    qint64 m_freePE;
     QString m_UUID;
 
 };