diff --git a/fetch-pack.c b/fetch-pack.c
index 1530a94794..48670f9c62 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -564,6 +564,7 @@ static int fetch_pack(int fd[2], int nr_match, char **match)
 			fprintf(stderr, "Server supports multi_ack\n");
 		multi_ack = 1;
 	}
+#ifndef __MINGW32__
 	if (server_supports("side-band-64k")) {
 		if (verbose)
 			fprintf(stderr, "Server supports side-band-64k\n");
@@ -574,6 +575,7 @@ static int fetch_pack(int fd[2], int nr_match, char **match)
 			fprintf(stderr, "Server supports side-band\n");
 		use_sideband = 1;
 	}
+#endif
 	if (!ref) {
 		packet_flush(fd[1]);
 		die("no matching remote head");
diff --git a/upload-pack.c b/upload-pack.c
index 0ce8ceeeac..ec0f0cbfbe 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -537,10 +537,12 @@ static void receive_needs(void)
 			use_thin_pack = 1;
 		if (strstr(line+45, "ofs-delta"))
 			use_ofs_delta = 1;
+#ifndef __MINGW32__
 		if (strstr(line+45, "side-band-64k"))
 			use_sideband = LARGE_PACKET_MAX;
 		else if (strstr(line+45, "side-band"))
 			use_sideband = DEFAULT_PACKET_MAX;
+#endif
 
 		/* We have sent all our refs already, and the other end
 		 * should have chosen out of them; otherwise they are