1 files changed, 1 insertions, 1 deletions

diff --git a/src/xterm.c b/src/xterm.c
index 9921ad03e7f..c4affa4a883 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -1777,7 +1777,7 @@ x_produce_stretch_glyph (it)
 
 #define VCENTER_BASELINE_OFFSET(FONT, F)                \
  ((FONT)->descent                                               \
-  + (FRAME_LINE_HEIGHT ((F)) - FONT_HEIGHT ((FONT))) / 2        \
+  + (FRAME_LINE_HEIGHT ((F)) + 1 - FONT_HEIGHT ((FONT))) / 2    \
   - ((F)->output_data.x->font->descent - (F)->output_data.x->baseline_offset))
 
 /* Produce glyphs/get display metrics for the display element IT is