diff --git a/contrib/ivshmem-server/main.c b/contrib/ivshmem-server/main.c
index ee08c4ced0..224dbeb547 100644
--- a/contrib/ivshmem-server/main.c
+++ b/contrib/ivshmem-server/main.c
@@ -17,7 +17,7 @@
 #define IVSHMEM_SERVER_DEFAULT_PID_FILE       "/var/run/ivshmem-server.pid"
 #define IVSHMEM_SERVER_DEFAULT_UNIX_SOCK_PATH "/tmp/ivshmem_socket"
 #define IVSHMEM_SERVER_DEFAULT_SHM_PATH       "ivshmem"
-#define IVSHMEM_SERVER_DEFAULT_SHM_SIZE       (4*1024*1024)
+#define IVSHMEM_SERVER_DEFAULT_SHM_SIZE       (4 * 1024 * 1024)
 #define IVSHMEM_SERVER_DEFAULT_N_VECTORS      1
 
 /* used to quit on signal SIGTERM */