diff --git a/src/plugins/languageclient/lspinspector.h b/src/plugins/languageclient/lspinspector.h
index 45ad8d206b0..9114edb85a1 100644
--- a/src/plugins/languageclient/lspinspector.h
+++ b/src/plugins/languageclient/lspinspector.h
@@ -40,7 +40,7 @@ namespace LanguageClient {
 class LspLogMessage
 {
 public:
-    enum MessageSender { ClientMessage, ServerMessage } sender;
+    enum MessageSender { ClientMessage, ServerMessage } sender = ClientMessage;
 
     LspLogMessage();
     LspLogMessage(MessageSender sender,