diff --git a/src/plugins/codecs/jp/qsjiscodec.cpp b/src/plugins/codecs/jp/qsjiscodec.cpp
index 49190d3..3ea5300 100644
--- a/src/plugins/codecs/jp/qsjiscodec.cpp
+++ b/src/plugins/codecs/jp/qsjiscodec.cpp
@@ -155,7 +155,9 @@ QString QSjisCodec::convertToUnicode(const char* chars, int len, ConverterState
         uchar ch = chars[i];
         switch (nbuf) {
         case 0:
-            if (ch < 0x80 || IsKana(ch)) {
+            if (ch < 0x80) {
+                result += QValidChar(ch);
+            } else if (IsKana(ch)) {
                 // JIS X 0201 Latin or JIS X 0201 Kana
                 u = conv->jisx0201ToUnicode(ch);
                 result += QValidChar(u);
diff --git a/tests/auto/qtextcodec/tst_qtextcodec.cpp b/tests/auto/qtextcodec/tst_qtextcodec.cpp
index 43656c8..15ecc3b 100644
--- a/tests/auto/qtextcodec/tst_qtextcodec.cpp
+++ b/tests/auto/qtextcodec/tst_qtextcodec.cpp
@@ -106,6 +106,8 @@ private slots:
 
     void moreToFromUnicode_data();
     void moreToFromUnicode();
+
+    void shiftJis();
 };
 
 void tst_QTextCodec::toUnicode_data()
@@ -2236,6 +2238,19 @@ void tst_QTextCodec::moreToFromUnicode()
     QCOMPARE(testData, cStr);
 }
 
+void tst_QTextCodec::shiftJis()
+{
+    QByteArray backslashTilde("\\~");
+    QTextCodec* codec = QTextCodec::codecForName("shift_jis");
+    QString string = codec->toUnicode(backslashTilde);
+    QCOMPARE(string.length(), 2);
+    QCOMPARE(string.at(0), QChar(QLatin1Char('\\')));
+    QCOMPARE(string.at(1), QChar(QLatin1Char('~')));
+
+    QByteArray encoded = codec->fromUnicode(string);
+    QCOMPARE(encoded, backslashTilde);
+}
+
 struct DontCrashAtExit {
     ~DontCrashAtExit() {
         QTextCodec *c = QTextCodec::codecForName("utf8");