diff --git a/core/fileaction.py b/core/fileaction.py
index b55480faf5..7d1e57999d 100755
--- a/core/fileaction.py
+++ b/core/fileaction.py
@@ -244,13 +244,15 @@ def try_completion(self, position, before_char, prefix, version=None):
                     self.send_server_request(lsp_server, "completion", lsp_server, position, before_char, prefix, version)
 
                     # Send workspace symbol completion request.
-                    self.send_server_request(lsp_server, "completion_workspace_symbol", lsp_server, prefix)
+                    if lsp_server.workspace_symbol_provider:
+                        self.send_server_request(lsp_server, "completion_workspace_symbol", lsp_server, prefix)
         else:
             # Send code completion request.
             self.send_server_request(self.single_server, "completion", self.single_server, position, before_char, prefix, version)
 
             # Send workspace symbol completion request.
-            self.send_server_request(self.single_server, "completion_workspace_symbol", self.single_server, prefix)
+            if self.single_server.workspace_symbol_provider:
+                self.send_server_request(self.single_server, "completion_workspace_symbol", self.single_server, prefix)
 
     def try_formatting(self, start, end, *args, **kwargs):
         if self.multi_servers: