diff --git a/pscp.c b/pscp.c
index 5b010ff1..9292052a 100644
--- a/pscp.c
+++ b/pscp.c
@@ -2235,11 +2235,7 @@ int psftp_main(int argc, char *argv[])
 
     default_protocol = PROT_TELNET;
 
-    flags = 0
-#ifdef FLAG_SYNCAGENT
-        | FLAG_SYNCAGENT
-#endif
-        ;
+    flags = 0;
     cmdline_tooltype = TOOLTYPE_FILETRANSFER;
     sk_init();
 
diff --git a/psftp.c b/psftp.c
index c7e2414b..cf9e88e3 100644
--- a/psftp.c
+++ b/psftp.c
@@ -2769,11 +2769,7 @@ int psftp_main(int argc, char *argv[])
     bool sanitise_stderr = true;
     char *batchfile = NULL;
 
-    flags = 0
-#ifdef FLAG_SYNCAGENT
-        | FLAG_SYNCAGENT
-#endif
-        ;
+    flags = 0;
     cmdline_tooltype = TOOLTYPE_FILETRANSFER;
     sk_init();
 
diff --git a/windows/winpgnt.c b/windows/winpgnt.c
index 67f53c00..089ba7ad 100644
--- a/windows/winpgnt.c
+++ b/windows/winpgnt.c
@@ -1183,7 +1183,7 @@ void cleanup_exit(int code)
     exit(code);
 }
 
-int flags = FLAG_SYNCAGENT;
+int flags = 0;
 
 struct winpgnt_client {
     PageantListenerClient plc;
diff --git a/windows/winstuff.h b/windows/winstuff.h
index d6cc1b68..7183a86e 100644
--- a/windows/winstuff.h
+++ b/windows/winstuff.h
@@ -662,13 +662,9 @@ char *agent_named_pipe_name(void);
  * winpgntc.c needs to schedule callbacks for asynchronous agent
  * requests. This has to be done differently in GUI and console, so
  * there's an exported function used for the purpose.
- *
- * Also, we supply FLAG_SYNCAGENT to force agent requests to be
- * synchronous in pscp and psftp.
  */
 void agent_schedule_callback(void (*callback)(void *, void *, int),
                              void *callback_ctx, void *data, int len);
-#define FLAG_SYNCAGENT 0x1000
 
 /*
  * Exports from winser.c.