diff --git a/kitty/terminfo.py b/kitty/terminfo.py
index a3cbff285..b33c39f38 100644
--- a/kitty/terminfo.py
+++ b/kitty/terminfo.py
@@ -31,6 +31,8 @@ bool_capabilities = {
     'xenl',
     # has extra status line (window title)
     'hs',
+    # Detect truecolor support
+    'RGB',
     # Terminfo extension used by tmux to detect true color support (non-standard)
     'Tc',
     # Indicates support for styled and colored underlines (non-standard) as
@@ -436,7 +438,7 @@ termcap_aliases.update({
 queryable_capabilities = numeric_capabilities.copy()
 queryable_capabilities.update(string_capabilities)
 extra = (bool_capabilities | numeric_capabilities.keys() | string_capabilities.keys()) - set(termcap_aliases.values())
-no_termcap_for = frozenset('Su Tc setrgbf setrgbb fullkbd'.split())
+no_termcap_for = frozenset('Su Tc setrgbf setrgbb fullkbd RGB'.split())
 if extra - no_termcap_for:
     raise Exception('Termcap aliases not complete, missing: {}'.format(extra - no_termcap_for))
 del extra
diff --git a/terminfo/78/xterm-kitty b/terminfo/78/xterm-kitty
index ea4a1ee0d..960740313 100644
Binary files a/terminfo/78/xterm-kitty and b/terminfo/78/xterm-kitty differ
diff --git a/terminfo/kitty.terminfo b/terminfo/kitty.terminfo
index 8e6dad247..493ee57ec 100644
--- a/terminfo/kitty.terminfo
+++ b/terminfo/kitty.terminfo
@@ -1,4 +1,5 @@
 xterm-kitty|KovIdTTY,
+	RGB,
 	Su,
 	Tc,
 	am,
diff --git a/terminfo/x/xterm-kitty b/terminfo/x/xterm-kitty
index ea4a1ee0d..960740313 100644
Binary files a/terminfo/x/xterm-kitty and b/terminfo/x/xterm-kitty differ