diff --git a/lua/paper-tonic.lua b/lua/paper-tonic.lua
index 9bdeda3..c6f39f3 100644
--- a/lua/paper-tonic.lua
+++ b/lua/paper-tonic.lua
@@ -7,7 +7,9 @@
 --[[/* VARS */]]
 
 --- Which set of colors to use.
-local _USE_256 = tonumber(vim.go.t_Co) > 255 or string.find(vim.env.TERM, '256')
+local has_t_Co = pcall(function() return vim.go.t_Co end)
+local _USE_256 = (has_t_Co and tonumber(vim.go.t_Co) > 255) or string.find(vim.env.TERM, '256')
+
 
 --- Indicating nothing for a highlight field.
 local _NONE = 'NONE'