diff --git a/src/quotedprintable.cpp b/src/quotedprintable.cpp
index e7e130c..ab56a36 100644
--- a/src/quotedprintable.cpp
+++ b/src/quotedprintable.cpp
@@ -18,7 +18,7 @@
 
 #include "quotedprintable.h"
 
-QString& QuotedPrintable::encode(const QByteArray &input)
+QString QuotedPrintable::encode(const QByteArray &input)
 {
     QString *output = new QString();
 
@@ -43,7 +43,7 @@ QString& QuotedPrintable::encode(const QByteArray &input)
 }
 
 
-QByteArray& QuotedPrintable::decode(const QString &input)
+QByteArray QuotedPrintable::decode(const QString &input)
 {
     //                    0  1  2  3  4  5  6  7  8  9  :  ;  <  =  >  ?  @  A   B   C   D   E   F
     const int hexVal[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, 0, 10, 11, 12, 13, 14, 15};
diff --git a/src/quotedprintable.h b/src/quotedprintable.h
index 5a54dc4..7eb855c 100644
--- a/src/quotedprintable.h
+++ b/src/quotedprintable.h
@@ -19,20 +19,13 @@
 #ifndef QUOTEDPRINTABLE_H
 #define QUOTEDPRINTABLE_H
 
-#include <QObject>
 #include <QByteArray>
+#include <QString>
 #include "smtpmime_global.h"
 
-class SMTP_MIME_EXPORT QuotedPrintable : public QObject
-{
-    Q_OBJECT
-public:
-
-    static QString& encode(const QByteArray &input);
-    static QByteArray& decode(const QString &input);
-
-private:
-    QuotedPrintable();
-};
+namespace QuotedPrintable {
+    SMTP_MIME_EXPORT QString encode(const QByteArray &input);
+    SMTP_MIME_EXPORT QByteArray decode(const QString &input);
+}
 
 #endif // QUOTEDPRINTABLE_H