diff --git a/lua/user/lsp/settings/jsonls.lua b/lua/user/lsp/settings/jsonls.lua
index 1fffa68..e202e1e 100644
--- a/lua/user/lsp/settings/jsonls.lua
+++ b/lua/user/lsp/settings/jsonls.lua
@@ -169,7 +169,7 @@ local schemas = {
 }
 
 local function extend(tab1, tab2)
-  for _, value in ipairs(tab2) do
+  for _, value in ipairs(tab2 or {}) do
     table.insert(tab1, value)
   end
   return tab1