diff --git a/source/smbd/server.c b/source/smbd/server.c
index 035469c..176cd5f 100644
--- a/source/smbd/server.c
+++ b/source/smbd/server.c
@@ -465,7 +465,8 @@ static bool open_sockets_smbd(bool is_daemon, bool interactive, const char *smb_
 		char *sock_tok;
 		const char *sock_ptr;
 
-		if (strequal(sock_addr, "0.0.0.0") ||
+		if (sock_addr[0] == '\0' ||
+				strequal(sock_addr, "0.0.0.0") ||
 				strequal(sock_addr, "::")) {
 #if HAVE_IPV6
 			sock_addr = "::,0.0.0.0";