diff --git a/src/core/smartattributeparseddata.cpp b/src/core/smartattributeparseddata.cpp
index b310a7b..8e16899 100644
--- a/src/core/smartattributeparseddata.cpp
+++ b/src/core/smartattributeparseddata.cpp
@@ -260,7 +260,7 @@ void SmartAttributeParsedData::verifySectors()
     if (prettyUnit() != SmartAttributeUnit::Sectors)
         return;
 
-    quint64 maxSectors = disk()->size() / 512ULL;
+    quint64 maxSectors = disk()->sectors();
 
     if (prettyValue() == 0xFFFFFFFFULL || prettyValue() == 0xFFFFFFFFFFFFULL || (maxSectors > 0
                                                                                  && prettyValue() > maxSectors))
diff --git a/src/core/smartdiskinformation.cpp b/src/core/smartdiskinformation.cpp
index 85a5dbb..30e1a6c 100644
--- a/src/core/smartdiskinformation.cpp
+++ b/src/core/smartdiskinformation.cpp
@@ -27,7 +27,7 @@ SmartDiskInformation::SmartDiskInformation() :
     m_ModelName(QString()),
     m_FirmwareVersion(QString()),
     m_SerialNumber(QString()),
-    m_Size(0),
+    m_Sectors(0),
     m_Temperature(0),
     m_BadSectors(0),
     m_PoweredOn(0),
@@ -64,7 +64,7 @@ void SmartDiskInformation::updateOverall()
         return;
     }
 
-    quint64 sector_threshold = u64log2(size() / 512) * 1024;
+    quint64 sector_threshold = u64log2(sectors()) * 1024;
 
     if (badSectors() >= sector_threshold) {
         m_Overall = SmartStatus::Overall::BadSectorsMany;
diff --git a/src/core/smartdiskinformation.h b/src/core/smartdiskinformation.h
index dbf3d38..8b9c957 100644
--- a/src/core/smartdiskinformation.h
+++ b/src/core/smartdiskinformation.h
@@ -66,9 +66,9 @@ public:
         return m_SerialNumber;    /**< @return the disk serial number */
     }
 
-    quint64 size() const
+    quint64 sectors() const
     {
-        return m_Size;    /**< @return disk size */
+        return m_Sectors;    /**< @return disk size */
     }
 
     bool smartStatus() const
@@ -127,9 +127,9 @@ public:
         m_SerialNumber = serial;
     }
 
-    void setSize(quint64 size)
+    void setSectors(quint64 numSectors)
     {
-        m_Size = size;
+        m_Sectors = numSectors;
     }
 
     void setPowerCycles(quint64 powerCycleCt)
@@ -159,7 +159,7 @@ private:
     QString m_ModelName;
     QString m_FirmwareVersion;
     QString m_SerialNumber;
-    quint64 m_Size;
+    quint64 m_Sectors;
     quint64 m_Temperature;
     quint64 m_BadSectors;
     quint64 m_PoweredOn;
diff --git a/src/core/smartparser.cpp b/src/core/smartparser.cpp
index 294691e..f7a7377 100644
--- a/src/core/smartparser.cpp
+++ b/src/core/smartparser.cpp
@@ -64,6 +64,7 @@ bool SmartParser::init()
     QString status = QStringLiteral("status");
     QString value = QStringLiteral("value");
     QString user_capacity = QStringLiteral("user_capacity");
+    QString blocks = QStringLiteral("blocks");
 
     if (!smartJson.contains(device)) {
         qDebug() << "smart disk open failed for " << devicePath() << ": " << strerror(errno);
@@ -91,7 +92,10 @@ bool SmartParser::init()
     m_DiskInformation->setModel(smartJson[model_name].toString());
     m_DiskInformation->setFirmware(smartJson[firmware].toString());
     m_DiskInformation->setSerial(smartJson[serial_number].toString());
-    m_DiskInformation->setSize(smartJson[user_capacity].toVariant().toULongLong());
+
+    const auto user_capacity_object = smartJson[user_capacity].toObject();
+    QString user_capacity_blocks = QStringLiteral("bytes");
+    m_DiskInformation->setSectors(user_capacity_object[user_capacity_blocks].toVariant().toULongLong());
 
     QJsonObject selfTest = smartJson[self_test].toObject();
     QJsonObject selfTestStatus = selfTest[status].toObject();
diff --git a/src/util/externalcommandhelper.cpp b/src/util/externalcommandhelper.cpp
index a2e7d6c..5ec790d 100644
--- a/src/util/externalcommandhelper.cpp
+++ b/src/util/externalcommandhelper.cpp
@@ -80,6 +80,7 @@ ActionReply ExternalCommandHelper::init(const QVariantMap& args)
     return reply;
 }
 
+
 /** Reads the given number of bytes from the sourceDevice into the given buffer.
     @param sourceDevice device or file to read from
     @param buffer buffer to store the bytes read in