diff --git a/terminfo/t/tmux/term.go b/terminfo/t/tmux/term.go
index 44975d69..2da0c3cf 100644
--- a/terminfo/t/tmux/term.go
+++ b/terminfo/t/tmux/term.go
@@ -68,4 +68,65 @@ func init() {
 		Modifiers:     1,
 		AutoMargin:    true,
 	})
+	terminfo.AddTerminfo(&terminfo.Terminfo{
+		Name:          "tmux-256color",
+		Columns:       80,
+		Lines:         24,
+		Colors:        256,
+		Bell:          "\a",
+		Clear:         "\x1b[H\x1b[J",
+		EnterCA:       "\x1b[?1049h",
+		ExitCA:        "\x1b[?1049l",
+		ShowCursor:    "\x1b[34h\x1b[?25h",
+		HideCursor:    "\x1b[?25l",
+		AttrOff:       "\x1b[m\x0f",
+		Underline:     "\x1b[4m",
+		Bold:          "\x1b[1m",
+		Dim:           "\x1b[2m",
+		Italic:        "\x1b[3m",
+		Blink:         "\x1b[5m",
+		Reverse:       "\x1b[7m",
+		EnterKeypad:   "\x1b[?1h\x1b=",
+		ExitKeypad:    "\x1b[?1l\x1b>",
+		SetFg:         "\x1b[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p1%d%;m",
+		SetBg:         "\x1b[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e48;5;%p1%d%;m",
+		SetFgBg:       "\x1b[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p1%d%;;%?%p2%{8}%<%t4%p2%d%e%p2%{16}%<%t10%p2%{8}%-%d%e48;5;%p2%d%;m",
+		ResetFgBg:     "\x1b[39;49m",
+		PadChar:       "\x00",
+		AltChars:      "++,,--..00``aaffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~",
+		EnterAcs:      "\x0e",
+		ExitAcs:       "\x0f",
+		EnableAcs:     "\x1b(B\x1b)0",
+		StrikeThrough: "\x1b[9m",
+		Mouse:         "\x1b[M",
+		SetCursor:     "\x1b[%i%p1%d;%p2%dH",
+		CursorBack1:   "\b",
+		CursorUp1:     "\x1bM",
+		KeyUp:         "\x1bOA",
+		KeyDown:       "\x1bOB",
+		KeyRight:      "\x1bOC",
+		KeyLeft:       "\x1bOD",
+		KeyInsert:     "\x1b[2~",
+		KeyDelete:     "\x1b[3~",
+		KeyBackspace:  "\u007f",
+		KeyHome:       "\x1b[1~",
+		KeyEnd:        "\x1b[4~",
+		KeyPgUp:       "\x1b[5~",
+		KeyPgDn:       "\x1b[6~",
+		KeyF1:         "\x1bOP",
+		KeyF2:         "\x1bOQ",
+		KeyF3:         "\x1bOR",
+		KeyF4:         "\x1bOS",
+		KeyF5:         "\x1b[15~",
+		KeyF6:         "\x1b[17~",
+		KeyF7:         "\x1b[18~",
+		KeyF8:         "\x1b[19~",
+		KeyF9:         "\x1b[20~",
+		KeyF10:        "\x1b[21~",
+		KeyF11:        "\x1b[23~",
+		KeyF12:        "\x1b[24~",
+		KeyBacktab:    "\x1b[Z",
+		Modifiers:     1,
+		AutoMargin:    true,
+	})
 }