diff --git a/meta-oe/recipes-extended/tmux/tmux_3.5.bb b/meta-oe/recipes-extended/tmux/tmux_3.5.bb
index 33f709681d..c7c87eb4a1 100644
--- a/meta-oe/recipes-extended/tmux/tmux_3.5.bb
+++ b/meta-oe/recipes-extended/tmux/tmux_3.5.bb
@@ -11,7 +11,7 @@ SRC_URI = "https://github.com/tmux/tmux/releases/download/${PV}/tmux-${PV}.tar.g
 SRC_URI[sha256sum] = "2fe01942e7e7d93f524a22f2c883822c06bc258a4d61dba4b407353d7081950f"
 
 UPSTREAM_CHECK_URI = "https://github.com/tmux/tmux/releases"
-UPSTREAM_CHECK_REGEX = "(?P<pver>\d+(\.\d+)+)"
+UPSTREAM_CHECK_REGEX = "(?P<pver>\d+(\.\d+)+[a-z]?)"
 
 inherit autotools pkgconfig