diff --git a/src/config.h b/src/config.h
index 565c671c..310d8dba 100644
--- a/src/config.h
+++ b/src/config.h
@@ -154,6 +154,9 @@ struct Config {
     // If true, diagnostics will be reported for textDocument/didOpen.
     bool onOpen = true;
 
+    // If true, diagnostics will be reported for textDocument/didSave.
+    bool onSave = true;
+
     bool spellChecking = true;
 
     std::vector<std::string> whitelist;
@@ -240,7 +243,7 @@ MAKE_REFLECT_STRUCT(Config::Completion, caseSensitivity, dropOldRequests,
                     includeMaxPathSize, includeSuffixWhitelist,
                     includeWhitelist);
 MAKE_REFLECT_STRUCT(Config::Diagnostics, blacklist, frequencyMs, onChange,
-                    onOpen, spellChecking, whitelist)
+                    onOpen, onSave, spellChecking, whitelist)
 MAKE_REFLECT_STRUCT(Config::Highlight, lsRanges, blacklist, whitelist)
 MAKE_REFLECT_STRUCT(Config::Index, blacklist, comments, enabled, multiVersion,
                     multiVersionBlacklist, multiVersionWhitelist, onChange,
diff --git a/src/messages/initialize.cc b/src/messages/initialize.cc
index 332f8c5b..c4516ef1 100644
--- a/src/messages/initialize.cc
+++ b/src/messages/initialize.cc
@@ -496,8 +496,7 @@ struct Handler_Initialize : BaseMessageHandler<In_InitializeRequest> {
         g_thread_id = i + 1;
         std::string name = "indexer" + std::to_string(i);
         set_thread_name(name.c_str());
-        pipeline::Indexer_Main(clang_complete, diag_pub, vfs, project,
-                               working_files);
+        pipeline::Indexer_Main(clang_complete, vfs, project, working_files);
       })
           .detach();
     }
diff --git a/src/messages/textDocument_didSave.cc b/src/messages/textDocument_didSave.cc
index 0badb21c..08520a92 100644
--- a/src/messages/textDocument_didSave.cc
+++ b/src/messages/textDocument_didSave.cc
@@ -49,6 +49,8 @@ struct Handler_TextDocumentDidSave
     Project::Entry entry = project->FindCompilationEntryForFile(path);
     pipeline::Index(entry.filename, entry.args, IndexMode::Normal);
     clang_complete->NotifySave(path);
+    if (g_config->diagnostics.onSave)
+      clang_complete->DiagnosticsUpdate(params.textDocument);
   }
 };
 REGISTER_MESSAGE_HANDLER(Handler_TextDocumentDidSave);
diff --git a/src/pipeline.cc b/src/pipeline.cc
index ffab9e29..e6df6fd9 100644
--- a/src/pipeline.cc
+++ b/src/pipeline.cc
@@ -165,8 +165,7 @@ std::unique_ptr<IndexFile> RawCacheLoad(const std::string &path) {
                            IndexFile::kMajorVersion);
 }
 
-bool Indexer_Parse(CompletionManager *completion,
-                   DiagnosticsPublisher *diag_pub, WorkingFiles *wfiles,
+bool Indexer_Parse(CompletionManager *completion, WorkingFiles *wfiles,
                    Project *project, VFS *vfs, const GroupMatch &matcher) {
   std::optional<Index_Request> opt_request = index_request->TryPopFront();
   if (!opt_request)
@@ -349,13 +348,11 @@ void Init() {
   for_stdout = new ThreadedQueue<Stdout_Request>(stdout_waiter);
 }
 
-void Indexer_Main(CompletionManager *completion,
-                  DiagnosticsPublisher *diag_pub, VFS *vfs, Project *project,
-                  WorkingFiles *working_files) {
+void Indexer_Main(CompletionManager *completion, VFS *vfs, Project *project,
+                  WorkingFiles *wfiles) {
   GroupMatch matcher(g_config->index.whitelist, g_config->index.blacklist);
   while (true)
-    if (!Indexer_Parse(completion, diag_pub, working_files, project, vfs,
-                       matcher))
+    if (!Indexer_Parse(completion, wfiles, project, vfs, matcher))
       indexer_waiter->Wait(index_request);
 }
 
diff --git a/src/pipeline.hh b/src/pipeline.hh
index da9bfc9e..6e311d5c 100644
--- a/src/pipeline.hh
+++ b/src/pipeline.hh
@@ -38,9 +38,8 @@ namespace pipeline {
 void Init();
 void LaunchStdin();
 void LaunchStdout();
-void Indexer_Main(CompletionManager *complete,
-                  DiagnosticsPublisher *diag_pub, VFS *vfs, Project *project,
-                  WorkingFiles *working_files);
+void Indexer_Main(CompletionManager *completion, VFS *vfs, Project *project,
+                  WorkingFiles *wfiles);
 void MainLoop();
 
 void Index(const std::string &path, const std::vector<std::string> &args,