diff --git a/src/insets/Inset.h b/src/insets/Inset.h
index f6a427ddb5..52e97929bd 100644
--- a/src/insets/Inset.h
+++ b/src/insets/Inset.h
@@ -229,7 +229,7 @@ public:
 	virtual col_type col(idx_type) const { return 0; }
 	/// to which row belongs a cell with a given index?
 	virtual row_type row(idx_type) const { return 0; }
-	/// cell idex corresponding to row and column;
+	/// cell index corresponding to row and column;
 	virtual idx_type index(row_type row, col_type col) const;
 	/// any additional x-offset when drawing a cell?
 	virtual int cellXOffset(idx_type) const { return 0; }