1 files changed, 1 insertions, 1 deletions

diff --git a/src/xterm.c b/src/xterm.c
index 8c2100cb8c4..ef4801fbb18 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -7641,7 +7641,7 @@ XTmouse_position (fp, insist, bar_window, part, x, y, time)
                    round down even for negative values.  */
                 if (gx < 0)
                   gx -= width - 1;
-                if (y < 0)
+                if (gy < 0)
                   gy -= height - 1;
                 gx = (gx + width - 1) / width * width;
                 gy = (gy + height - 1) / height * height;