diff --git a/src/libCom/osi/os/solaris/osdSock.h b/src/libCom/osi/os/solaris/osdSock.h
index 7fb591b6d..41ea56cfa 100644
--- a/src/libCom/osi/os/solaris/osdSock.h
+++ b/src/libCom/osi/os/solaris/osdSock.h
@@ -47,10 +47,10 @@ typedef int SOCKET;
 #define socket_ioctl(A,B,C) ioctl(A,B,C)
 typedef int osiSockIoctl_t;
 
-#if SOLARIS <= 6 
-    typedef int osiSocklen_t;
-#else 
+#if SOLARIS > 6 || defined ( _SOCKLEN_T )
     typedef uint32_t osiSocklen_t;
+#else 
+    typedef int osiSocklen_t;
 #endif
 
 #define DOES_NOT_ACCEPT_ZERO_LENGTH_UDP