diff --git a/src/os/darwin/darwin_sigar.c b/src/os/darwin/darwin_sigar.c
index 811a8cb3..7c0cd23f 100644
--- a/src/os/darwin/darwin_sigar.c
+++ b/src/os/darwin/darwin_sigar.c
@@ -3484,6 +3484,9 @@ int sigar_os_sys_info_get(sigar_t *sigar,
           case 6:
             codename = "Snow Leopard";
             break;
+          case 7:
+            codename = "Lion";
+            break;
           default:
             codename = "Unknown";
             break;