diff --git a/bin/base64.c b/bin/base64.c
index f411369..77508c8 100644
--- a/bin/base64.c
+++ b/bin/base64.c
@@ -319,15 +319,6 @@ encode (const struct config *config, struct buffer *buf)
 	size_t nread, nout;
 	struct base64_state state;
 
-#ifdef WIN
-
-	// On Windows platforms, ensure that stdout is binary-clean, and
-	// newlines at the end of the line are not silently converted to CRLFs.
-	// This seems to be the portable way to do it. freopen() and
-	// SetConsoleMode() occasionally result in permission errors.
-	_setmode(1, _O_BINARY);
-#endif
-
 	// Initialize the encoder's state structure.
 	base64_stream_encode_init(&state, 0);
 
@@ -658,6 +649,15 @@ main (int argc, char **argv)
 		return 1;
 	}
 
+#ifdef WIN
+
+	// On Windows platforms, ensure that stdout is binary-clean, and
+	// newlines at the end of the line are not silently converted to CRLFs.
+	// This seems to be the portable way to do it. freopen() and
+	// SetConsoleMode() occasionally result in permission errors.
+	_setmode(1, _O_BINARY);
+#endif
+
 	// Encode or decode the input based on the user's choice.
 	const bool ret = config.decode
 		? decode(&config, &buf)