diff --git a/headers/os/interface/TextView.h b/headers/os/interface/TextView.h
index 3f8bc9a7d3..12932229ca 100644
--- a/headers/os/interface/TextView.h
+++ b/headers/os/interface/TextView.h
@@ -248,7 +248,7 @@ private:
 			class UndoBuffer;
 			class WidthBuffer;
 
-			// UndoBuffer deratives
+			// UndoBuffer derivatives
 			class CutUndoBuffer;
 			class PasteUndoBuffer;
 			class ClearUndoBuffer;