diff --git a/autotest.sh b/autotest.sh
index 34f743045..fbc5612c2 100755
--- a/autotest.sh
+++ b/autotest.sh
@@ -60,6 +60,7 @@ out=$output_dir
 cd $src
 
 freebsd_update_contigmem_mod
+freebsd_set_maxsock_buf
 
 # lcov takes considerable time to process clang coverage.
 # Disabling lcov allow us to do this.
diff --git a/test/common/autotest_common.sh b/test/common/autotest_common.sh
index c9d0f96d7..76477ab94 100755
--- a/test/common/autotest_common.sh
+++ b/test/common/autotest_common.sh
@@ -1411,6 +1411,15 @@ function freebsd_update_contigmem_mod() {
 	fi
 }
 
+function freebsd_set_maxsock_buf() {
+	# FreeBSD needs 4MB maxsockbuf size to pass socket unit tests.
+	# Otherwise tests fail due to ENOBUFS when trying to do setsockopt(SO_RCVBUF|SO_SNDBUF).
+	# See https://github.com/spdk/spdk/issues/2943
+	if [[ $(uname) = FreeBSD ]] && (($(sysctl -n kern.ipc.maxsockbuf) < 4194304)); then
+		sysctl kern.ipc.maxsockbuf=4194304
+	fi
+}
+
 function get_nvme_name_from_bdf() {
 	blkname=()