diff --git a/src/api/sockets.c b/src/api/sockets.c
index cd956027..e427bd2b 100644
--- a/src/api/sockets.c
+++ b/src/api/sockets.c
@@ -938,7 +938,7 @@ int
 lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
                struct timeval *timeout)
 {
-  int i;
+  u32_t waitres;
   int nready;
   fd_set lreadset, lwriteset, lexceptset;
   u32_t msectimeout;
@@ -1017,7 +1017,7 @@ lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
         msectimeout = 1;
     }
     
-    i = sys_arch_sem_wait(select_cb.sem, msectimeout);
+    waitres = sys_arch_sem_wait(select_cb.sem, msectimeout);
     
     /* Take us off the list */
     sys_sem_wait(selectsem);
@@ -1034,7 +1034,7 @@ lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
     sys_sem_signal(selectsem);
     
     sys_sem_free(select_cb.sem);
-    if (i == SYS_ARCH_TIMEOUT)  {
+    if (waitres == SYS_ARCH_TIMEOUT)  {
       /* Timeout */
       if (readset)
         FD_ZERO(readset);