diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index 7205f69278..ab2164b82b 100644
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -636,6 +636,21 @@ BufferParams const & Buffer::params() const
 }
 
 
+BufferParams const & Buffer::masterParams() const
+{
+	if (masterBuffer() == this)
+		return params();
+
+	BufferParams & mparams = const_cast<Buffer *>(masterBuffer())->params();
+	// Copy child authors to the params. We need those pointers.
+	AuthorList const & child_authors = params().authors();
+	AuthorList::Authors::const_iterator it = child_authors.begin();
+	for (; it != child_authors.end(); it++)
+		mparams.authors().record(*it);
+	return mparams;
+}
+
+
 ParagraphList & Buffer::paragraphs()
 {
 	return text().paragraphs();
diff --git a/src/Buffer.h b/src/Buffer.h
index 5fdf020e4c..fe0294bf1f 100644
--- a/src/Buffer.h
+++ b/src/Buffer.h
@@ -510,6 +510,8 @@ public:
 	///
 	BufferParams & params();
 	BufferParams const & params() const;
+	///
+	BufferParams const & masterParams() const;
 
 	/** The list of paragraphs.
 	    This is a linked list of paragraph, this list holds the
diff --git a/src/Paragraph.cpp b/src/Paragraph.cpp
index 7118ff6962..d32c0be2f0 100644
--- a/src/Paragraph.cpp
+++ b/src/Paragraph.cpp
@@ -1451,7 +1451,7 @@ void Paragraph::Private::validate(LaTeXFeatures & features) const
 		bool const is_command = layout_->latextype == LATEX_COMMAND;
 		Buffer const & buf = inset_owner_->buffer();
 		BufferParams const & bp = features.runparams().is_child
-			? buf.masterBuffer()->params() : buf.params();
+			? buf.masterParams() : buf.params();
 		Font f;
 		TexRow texrow;
 		// Using a string stream here circumvents the encoding
diff --git a/src/output_latex.cpp b/src/output_latex.cpp
index a07b538c1c..31211d1c85 100644
--- a/src/output_latex.cpp
+++ b/src/output_latex.cpp
@@ -524,7 +524,7 @@ void TeXOnePar(Buffer const & buf,
 	       int start_pos, int end_pos)
 {
 	BufferParams const & bparams = runparams_in.is_child
-		? buf.masterBuffer()->params() : buf.params();
+		? buf.masterParams() : buf.params();
 	ParagraphList const & paragraphs = text.paragraphs();
 	Paragraph const & par = paragraphs.at(pit);
 	// FIXME This check should not really be needed.