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-rw-r--r--runtime/lua/vim/shared.lua2
1 files changed, 1 insertions, 1 deletions
diff --git a/runtime/lua/vim/shared.lua b/runtime/lua/vim/shared.lua
index 133f7e64ac..e170befa4c 100644
--- a/runtime/lua/vim/shared.lua
+++ b/runtime/lua/vim/shared.lua
@@ -592,7 +592,7 @@ do
-- Check user-provided validation function.
local valid, optional_message = types(val)
if not valid then
- local error_message = string.format("%s: expected %s, got %s", param_name, (spec[3] or '?'), val)
+ local error_message = string.format("%s: expected %s, got %s", param_name, (spec[3] or '?'), tostring(val))
if optional_message ~= nil then
error_message = error_message .. string.format(". Info: %s", optional_message)
end