diff --git a/lua/rust-tools/inlay_hints.lua b/lua/rust-tools/inlay_hints.lua
index 0df31a1..0374735 100644
--- a/lua/rust-tools/inlay_hints.lua
+++ b/lua/rust-tools/inlay_hints.lua
@@ -139,7 +139,7 @@ local function parse_hints(result, bufnr)
     end
 
     local line_len =
-      string.len(vim.api.nvim_buf_get_lines(bufnr, line, line + 1, true)[1])
+      string.len(vim.api.nvim_buf_get_lines(bufnr, line, line + 1, false)[1] or "")
     max_line_len = math.max(max_line_len, line_len)
 
     add_line()