diff --git a/src/corelib/codecs/qtextcodec.cpp b/src/corelib/codecs/qtextcodec.cpp
index 06fd88da90..72c7844561 100644
--- a/src/corelib/codecs/qtextcodec.cpp
+++ b/src/corelib/codecs/qtextcodec.cpp
@@ -1275,4 +1275,15 @@ bool QTextDecoder::needsMoreData() const
     return state.remainingChars;
 }
 
+/*!
+    \fn QTextCodec *Qt::codecForHtml(const QByteArray &ba)
+    \internal
+
+    This function is defined in the \c <QTextCodec> header file.
+*/
+QTextCodec *Qt::codecForHtml(const QByteArray &ba)
+{
+    return QTextCodec::codecForHtml(ba);
+}
+
 QT_END_NAMESPACE
diff --git a/src/corelib/codecs/qtextcodec.h b/src/corelib/codecs/qtextcodec.h
index 3010a2714e..885518d17f 100644
--- a/src/corelib/codecs/qtextcodec.h
+++ b/src/corelib/codecs/qtextcodec.h
@@ -167,6 +167,11 @@ private:
     QTextCodec::ConverterState state;
 };
 
+namespace Qt
+{
+    Q_CORE_EXPORT QTextCodec *codecForHtml(const QByteArray &ba);
+}
+
 QT_END_NAMESPACE
 
 #endif // QTEXTCODEC_H
diff --git a/src/gui/text/qtextdocument.cpp b/src/gui/text/qtextdocument.cpp
index 9cc1ba6c1c..04350bcda5 100644
--- a/src/gui/text/qtextdocument.cpp
+++ b/src/gui/text/qtextdocument.cpp
@@ -51,9 +51,6 @@
 #include <qregularexpression.h>
 #endif
 #include <qvarlengtharray.h>
-#if QT_CONFIG(textcodec)
-#include <qtextcodec.h>
-#endif
 #include <qthread.h>
 #include <qcoreapplication.h>
 #include <qmetaobject.h>
@@ -211,19 +208,6 @@ QString Qt::convertFromPlainText(const QString &plain, Qt::WhiteSpaceMode mode)
     return rich;
 }
 
-/*!
-    \fn QTextCodec *Qt::codecForHtml(const QByteArray &ba)
-    \internal
-
-    This function is defined in the \c <QTextDocument> header file.
-*/
-#if QT_CONFIG(textcodec)
-QTextCodec *Qt::codecForHtml(const QByteArray &ba)
-{
-    return QTextCodec::codecForHtml(ba);
-}
-#endif
-
 /*!
     \class QTextDocument
     \reentrant
diff --git a/src/gui/text/qtextdocument.h b/src/gui/text/qtextdocument.h
index 369851ceea..b34175994d 100644
--- a/src/gui/text/qtextdocument.h
+++ b/src/gui/text/qtextdocument.h
@@ -62,7 +62,6 @@ class QTextObject;
 class QTextFormat;
 class QTextFrame;
 class QTextBlock;
-class QTextCodec;
 class QVariant;
 class QRectF;
 class QTextOption;
@@ -74,10 +73,6 @@ namespace Qt
 {
     Q_GUI_EXPORT bool mightBeRichText(const QString&);
     Q_GUI_EXPORT QString convertFromPlainText(const QString &plain, WhiteSpaceMode mode = WhiteSpacePre);
-
-#if QT_CONFIG(textcodec) || defined(Q_CLANG_QDOC)
-    Q_GUI_EXPORT QTextCodec *codecForHtml(const QByteArray &ba);
-#endif
 }
 
 class Q_GUI_EXPORT QAbstractUndoItem