diff --git a/kmymoney/kmymoney.cpp b/kmymoney/kmymoney.cpp
--- a/kmymoney/kmymoney.cpp
+++ b/kmymoney/kmymoney.cpp
@@ -438,14 +438,6 @@
     }
   }
 
-  void ungetString(QIODevice *qfile, char *buf, int len)
-  {
-    buf = &buf[len-1];
-    while (len--) {
-      qfile->ungetChar(*buf--);
-    }
-  }
-
   bool applyFileFixes()
   {
     const auto blocked = MyMoneyFile::instance()->blockSignals(true);
@@ -758,13 +750,6 @@
 
     file.close();
 
-    // There's a problem with the KFilterDev and KGPGFile classes:
-    // One supports the at(n) member but not ungetch() together with
-    // read() and the other does not provide an at(n) method but
-    // supports read() that considers the ungetch() buffer. QFile
-    // supports everything so this is not a problem. We solve the problem
-    // for now by keeping track of which method can be used.
-    auto haveAt = true;
     auto isEncrypted = false;
 
     emit q->kmmFilePlugin(preOpen);
@@ -778,7 +763,6 @@
                sFileHeader == QString("\205\002")) {  // PGP binary?
       if (KGPGFile::GPGAvailable()) {
         qfile = new KGPGFile(fileName);
-        haveAt = false;
         isEncrypted = true;
       } else {
         throw MYMONEYEXCEPTION(QString::fromLatin1("%1").arg(i18n("GPG is not available for decryption of file <b>%1</b>", fileName)));
@@ -797,10 +781,7 @@
     if (qfile->read(qbaFileHeader.data(), 8) != 8)
       throw MYMONEYEXCEPTION(sFileToShort);
 
-    if (haveAt)
-      qfile->seek(0);
-    else
-      ungetString(qfile, qbaFileHeader.data(), 8);
+    qfile->seek(0);
 
     // Ok, we got the first block of 8 bytes. Read in the two
     // unsigned long int's by preserving endianess. This is
@@ -834,10 +815,7 @@
     if (qfile->read(qbaFileHeader.data(), 70) != 70)
       throw MYMONEYEXCEPTION(sFileToShort);
 
-    if (haveAt)
-      qfile->seek(0);
-    else
-      ungetString(qfile, qbaFileHeader.data(), 70);
+    qfile->seek(0);
 
     IMyMoneyOperationsFormat* pReader = nullptr;
     QRegExp kmyexp("<!DOCTYPE KMYMONEY-FILE>");