1 files changed, 5 insertions, 4 deletions

diff --git a/src/xterm.c b/src/xterm.c
index 838e6472c7f..0736459cf30 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -1775,10 +1775,11 @@ x_produce_stretch_glyph (it)
         F_HEIGHT = FRAME_LINE_HEIGHT (F)
 */
 
-#define VCENTER_BASELINE_OFFSET(FONT, F)                \
- ((FONT)->descent                                               \
-  + (FRAME_LINE_HEIGHT ((F)) + 1 - FONT_HEIGHT ((FONT))) / 2    \
-  - ((F)->output_data.x->font->descent - (F)->output_data.x->baseline_offset))
+#define VCENTER_BASELINE_OFFSET(FONT, F)                        \
+  ((FONT)->descent                                              \
+   + (FRAME_LINE_HEIGHT ((F)) - FONT_HEIGHT ((FONT))            \
+      + (FRAME_LINE_HEIGHT ((F)) > 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
    loaded with.  See the description of struct display_iterator in