diff --git a/include/msvc/poll.h b/include/msvc/poll.h
index 7a56154b..d158ab1f 100644
--- a/include/msvc/poll.h
+++ b/include/msvc/poll.h
@@ -10,7 +10,7 @@ extern "C" {
 
 static inline int poll(struct pollfd pfd[], uint32_t size, int nvecs)
 {
-  return WSAPoll(pfd, size, nvecs);
+  return WSAPoll(pfd, (unsigned long)size, nvecs);
 }
 
 #ifdef __cplusplus
diff --git a/lib/socket.c b/lib/socket.c
index 6a58f425..fae4069d 100644
--- a/lib/socket.c
+++ b/lib/socket.c
@@ -1068,7 +1068,7 @@ smb2_connect_async(struct smb2_context *smb2, const char *server,
                         return -EAGAIN;
                     case EAI_NONAME:
 #ifdef EAI_NODATA
-#if EAI_NODATA != EAI_NONAME /* Equal in MSCV */
+#if EAI_NODATA != EAI_NONAME /* Equal in MSVC */
                     case EAI_NODATA:
 #endif
 #endif