diff --git a/mu/mu-cmd-server.cc b/mu/mu-cmd-server.cc
index 382c817e..559c6e2d 100644
--- a/mu/mu-cmd-server.cc
+++ b/mu/mu-cmd-server.cc
@@ -115,7 +115,7 @@ mu_cmd_server (const MuConfig *opts, GError **err) try {
 
         bool do_quit{};
         while (!MuTerminate && !do_quit) {
-
+                ::fflush(::stdout); // Needed for Windows, see issue #1827.
                 const auto line{read_line(do_quit)};
                 if (line.find_first_not_of(" \t") == std::string::npos)
                         continue; // skip whitespace-only lines