1 files changed, 3 insertions, 1 deletions

diff --git a/win32/winansi.c b/win32/winansi.c
index 66b040b31..dc98b9d2b 100644
--- a/win32/winansi.c
+++ b/win32/winansi.c
@@ -1590,8 +1590,10 @@ static int conv_fwriteCon(FILE *stream, char *buf, size_t siz)
 {
         if (conout_conv_enabled()) {
 #if ENABLE_FEATURE_UTF8_OUTPUT
-                if (GetConsoleOutputCP() != CP_UTF8)
+                if (GetConsoleOutputCP() != CP_UTF8) {
+                        fflush(stream);  // writeCon_utf8 is unbuffered
                         return writeCon_utf8(fileno(stream), buf, siz) ? EOF : 0;
+                }
 #else
                 charToConBuffA(buf, siz);
 #endif