diff --git a/text.lua b/text.lua
index a237d7d..f3f7eac 100644
--- a/text.lua
+++ b/text.lua
@@ -9,9 +9,9 @@ function upper_first(text) return text:sub(1, 1):upper() .. text:sub(2) end
 
 function lower_first(text) return text:sub(1, 1):lower() .. text:sub(2) end
 
-function starts_with(text, start) return text:sub(1, start:len()) == start end
+function starts_with(text, prefix) return text:sub(1, #prefix) == prefix end
 
-function ends_with(text, suffix) return text:sub(text:len() - suffix:len() + 1) == suffix end
+function ends_with(text, suffix) return text:sub(-#suffix) == suffix end
 
 function trim(text, to_remove)
 	local j = 1
@@ -188,4 +188,4 @@ function is_identifier(text)
 end
 
 -- Export environment
-return _ENV
\ No newline at end of file
+return _ENV