diff --git a/lib/ruby_lsp/tapioca/addon.rb b/lib/ruby_lsp/tapioca/addon.rb
index 663b0b0bb..2f061e654 100644
--- a/lib/ruby_lsp/tapioca/addon.rb
+++ b/lib/ruby_lsp/tapioca/addon.rb
@@ -209,16 +209,42 @@ def file_updated?(change, path)
       #: -> void
       def run_gem_rbi_check
         state = @global_state #: as !nil
-        gem_rbi_check = RunGemRbiCheck.new(state.workspace_path)
+        queue = @outgoing_queue #: as !nil
+
+        gem_rbi_dir = gem_rbi_directory(state.workspace_path)
+        unless File.exist?(gem_rbi_dir)
+          queue << Notification.window_log_message("Did not find gem RBI directory", type: Constant::MessageType::WARNING)
+          return
+        end
+
+        gem_rbi_check = RunGemRbiCheck.new(state.workspace_path, gem_rbi_dir)
         gem_rbi_check.run
 
-        queue = @outgoing_queue #: as !nil
         queue << Notification.window_log_message(gem_rbi_check.stdout) unless gem_rbi_check.stdout.empty?
 
         unless gem_rbi_check.stderr.empty?
           queue << Notification.window_log_message(gem_rbi_check.stderr, type: Constant::MessageType::WARNING)
         end
       end
+
+      #: (String) -> String
+      def gem_rbi_directory(workspace_path)
+        config_file_path = File.join(workspace_path, ::Tapioca::TAPIOCA_CONFIG_FILE)
+
+        if File.exist?(config_file_path)
+          begin
+            config = YAML.load_file(config_file_path, fallback: {})
+            outdir = config.dig("gem", "outdir") || ::Tapioca::DEFAULT_GEM_DIR
+
+            return File.expand_path(outdir, workspace_path)
+          rescue Errno::ENOENT
+            queue = @outgoing_queue #: as !nil
+            queue << Notification.window_log_message("Invalid YAML or file read error", type: Constant::MessageType::WARNING)
+          end
+        end
+
+        File.expand_path(::Tapioca::DEFAULT_GEM_DIR, workspace_path)
+      end
     end
   end
 end
diff --git a/lib/ruby_lsp/tapioca/run_gem_rbi_check.rb b/lib/ruby_lsp/tapioca/run_gem_rbi_check.rb
index fbb14d5cb..9874471b9 100644
--- a/lib/ruby_lsp/tapioca/run_gem_rbi_check.rb
+++ b/lib/ruby_lsp/tapioca/run_gem_rbi_check.rb
@@ -13,9 +13,10 @@ class RunGemRbiCheck
       #: Process::Status?
       attr_reader :status
 
-      #: (String project_path) -> void
-      def initialize(project_path)
+      #: (String, ?String) -> void
+      def initialize(project_path, gem_rbi_dir = ::Tapioca::DEFAULT_GEM_DIR)
         @project_path = project_path
+        @gem_rbi_dir = gem_rbi_dir
         @stdout = "" #: String
         @stderr = "" #: String
         @status = nil #: Process::Status?
@@ -79,16 +80,16 @@ def generate_gem_rbis
       #: (Array[String] gems) -> void
       def execute_tapioca_gem_command(gems)
         Bundler.with_unbundled_env do
+          cmd = ["bundle", "exec", "tapioca", "gem", "--lsp_addon"]
+
+          if @gem_rbi_dir != ::Tapioca::DEFAULT_GEM_DIR
+            cmd.push("--outdir", @gem_rbi_dir)
+          end
+
+          cmd.concat(gems)
+
           stdout, stderr, status = Open3 #: as untyped
-            .capture3(
-              "bundle",
-              "exec",
-              "tapioca",
-              "gem",
-              "--lsp_addon",
-              *gems,
-              chdir: @project_path,
-            )
+            .capture3(*cmd, chdir: @project_path)
 
           log_message(stdout) unless stdout.empty?
           @stderr = stderr unless stderr.empty?
@@ -99,7 +100,7 @@ def execute_tapioca_gem_command(gems)
       #: (Array[String] gems) -> void
       def remove_rbis(gems)
         files = Dir.glob(
-          "sorbet/rbi/gems/{#{gems.join(",")}}@*.rbi",
+          "#{@gem_rbi_dir}/{#{gems.join(",")}}@*.rbi",
           base: @project_path,
         )
         delete_files(files, "Removed RBIs for")
@@ -117,7 +118,7 @@ def cleanup_orphaned_rbis
       #: (*untyped flags) -> Array[String]
       def git_ls_gem_rbis(*flags)
         self #: as untyped # rubocop:disable Style/RedundantSelf
-          .execute_in_project_path("git", "ls-files", *flags, "sorbet/rbi/gems/")
+          .execute_in_project_path("git", "ls-files", *flags, "#{@gem_rbi_dir}/")
           .lines
           .map(&:strip)
       end
diff --git a/spec/tapioca/ruby_lsp/run_gem_rbi_check_spec.rb b/spec/tapioca/ruby_lsp/run_gem_rbi_check_spec.rb
index 5d1a437f2..de3f6fc69 100644
--- a/spec/tapioca/ruby_lsp/run_gem_rbi_check_spec.rb
+++ b/spec/tapioca/ruby_lsp/run_gem_rbi_check_spec.rb
@@ -176,6 +176,26 @@ class RunGemRbiCheckSpec < SpecWithProject
 
           assert_project_file_exist("sorbet/rbi/gems/foo@0.0.1.rbi")
         end
+
+        it "respects custom gem directory" do
+          FileUtils.mkdir_p("#{@project.absolute_path}/custom/gem/dir")
+
+          foo = mock_gem("foo", "0.0.1") do
+            write!("lib/foo.rb", FOO_RB)
+          end
+          @project.require_mock_gem(foo)
+          @project.bundle_install!
+
+          FileUtils.touch("#{@project.absolute_path}/custom/gem/dir/bar@0.0.1.rbi")
+
+          check = ::RubyLsp::Tapioca::RunGemRbiCheck.new(@project.absolute_path, "custom/gem/dir")
+          check.run
+
+          refute_project_file_exist("custom/gem/dir/bar@0.0.1.rbi")
+          assert_project_file_exist("custom/gem/dir/foo@0.0.1.rbi")
+
+          @project.remove!("custom")
+        end
       end
     end
   end