diff --git a/lua/rustaceanvim/config/server.lua b/lua/rustaceanvim/config/server.lua
index c4206929..3c6a37db 100644
--- a/lua/rustaceanvim/config/server.lua
+++ b/lua/rustaceanvim/config/server.lua
@@ -22,15 +22,18 @@ function server.load_rust_analyzer_settings(project_root, opts)
   local default_settings = opts.default_settings or config.server.default_settings
   local use_clippy = config.tools.enable_clippy and vim.fn.executable('cargo-clippy') == 1
   ---@diagnostic disable-next-line: undefined-field
-  if default_settings['rust-analyzer'].check == nil and use_clippy then
+  if default_settings['rust-analyzer'].check == nil and use_clippy and
+      type(default_settings['rust-analyzer'].checkOnSave) ~= 'table' then
     ---@diagnostic disable-next-line: inject-field
     default_settings['rust-analyzer'].check = {
       allFeatures = true,
       command = 'clippy',
       extraArgs = { '--no-deps' },
     }
-    ---@diagnostic disable-next-line: inject-field
-    default_settings['rust-analyzer'].checkOnSave = true
+    if type(default_settings['rust-analyzer'].checkOnSave) ~= 'boolean' then
+      ---@diagnostic disable-next-line: inject-field
+      default_settings['rust-analyzer'].checkOnSave = true
+    end
   end
   if not project_root then
     return default_settings
@@ -151,3 +154,4 @@ function server.create_client_capabilities()
 end
 
 return server
+