diff --git a/src/dispnew.c b/src/dispnew.c
index 1f8f34dcc4e44367c8aed51017cd1776c22ff7ed..278dabf4e3bcf7fcf145864413038a1c75e799d2 100644
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -5138,7 +5138,7 @@ mode_line_string (w, x, y, mode_line_p, charpos)
 	 and bitmap area width.  */
       if (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f))
 	x += FRAME_SCROLL_BAR_COLS (f) * CANON_X_UNIT (f);
-      x += FRAME_FLAGS_AREA_WIDTH (f);
+      x += FRAME_LEFT_FLAGS_AREA_WIDTH (f);
 
       /* Find the glyph under X.  If we find one with a string object,
          it's the one we were looking for.  */