diff --git a/src/Row.cpp b/src/Row.cpp
index 3fb87bd7e1..e105ae2333 100644
--- a/src/Row.cpp
+++ b/src/Row.cpp
@@ -169,11 +169,11 @@ Row::Row()
 {}
 
 
-bool Row::isMarginSelected(bool left_margin, DocIterator const & beg,
+bool Row::isMarginSelected(bool left, DocIterator const & beg,
 		DocIterator const & end) const
 {
-	pos_type const sel_pos = left_margin ? sel_beg : sel_end;
-	pos_type const margin_pos = left_margin ? pos_ : end_;
+	pos_type const sel_pos = left ? sel_beg : sel_end;
+	pos_type const margin_pos = left ? pos_ : end_;
 
 	// Is the chosen margin selected ?
 	if (sel_pos == margin_pos) {
diff --git a/src/Row.h b/src/Row.h
index 49513d32b9..e45fa4e8c9 100644
--- a/src/Row.h
+++ b/src/Row.h
@@ -321,7 +321,7 @@ private:
 	  * \param beg
 	  * \param end
 	  */
-	bool isMarginSelected(bool left_margin, DocIterator const & beg,
+	bool isMarginSelected(bool left, DocIterator const & beg,
 		DocIterator const & end) const;
 
 	/**