diff --git a/proton b/proton
index e7de588f..2d69a76f 100755
--- a/proton
+++ b/proton
@@ -1300,7 +1300,7 @@ class Session:
                 log("************************************************")
 
         if "PROTON_LOG" in self.env and nonzero(self.env["PROTON_LOG"]):
-            self.env.setdefault("WINEDEBUG", "+timestamp,+pid,+tid,+seh,+unwind,+debugstr,+loaddll,+mscoree")
+            self.env.setdefault("WINEDEBUG", "+timestamp,+pid,+tid,+seh,+unwind,+threadname,+debugstr,+loaddll,+mscoree")
             self.env.setdefault("DXVK_LOG_LEVEL", "info")
             self.env.setdefault("VKD3D_DEBUG", "warn")
             self.env.setdefault("VKD3D_SHADER_DEBUG", "fixme")