diff --git a/src/plugins/help/textbrowserhelpviewer.cpp b/src/plugins/help/textbrowserhelpviewer.cpp
index 531cfa5c454..64464f5ca4a 100644
--- a/src/plugins/help/textbrowserhelpviewer.cpp
+++ b/src/plugins/help/textbrowserhelpviewer.cpp
@@ -448,3 +448,19 @@ void TextBrowserHelpWidget::mouseReleaseEvent(QMouseEvent *e)
 
     QTextBrowser::mouseReleaseEvent(e);
 }
+
+void TextBrowserHelpWidget::setSource(const QUrl &name)
+{
+    QTextBrowser::setSource(name);
+
+    QTextCursor cursor(document());
+    while (!cursor.atEnd()) {
+        QTextBlockFormat fmt = cursor.blockFormat();
+        if (fmt.hasProperty(QTextFormat::LineHeightType) && fmt.lineHeightType() == QTextBlockFormat::FixedHeight) {
+           fmt.setProperty(QTextFormat::LineHeightType, QTextBlockFormat::MinimumHeight);
+           cursor.setBlockFormat(fmt);
+        }
+        if (!cursor.movePosition(QTextCursor::NextBlock))
+            break;
+    }
+}
diff --git a/src/plugins/help/textbrowserhelpviewer.h b/src/plugins/help/textbrowserhelpviewer.h
index 11a78819a81..ef777d6a81e 100644
--- a/src/plugins/help/textbrowserhelpviewer.h
+++ b/src/plugins/help/textbrowserhelpviewer.h
@@ -97,6 +97,8 @@ public:
     void scaleUp();
     void scaleDown();
 
+    void setSource(const QUrl &name);
+
 protected:
     void contextMenuEvent(QContextMenuEvent *event);
     bool eventFilter(QObject *obj, QEvent *event);