diff --git a/dlls/iphlpapi/ifenum.c b/dlls/iphlpapi/ifenum.c
index e749cce6ad4..b4a956c97b4 100644
--- a/dlls/iphlpapi/ifenum.c
+++ b/dlls/iphlpapi/ifenum.c
@@ -586,7 +586,7 @@ DWORD getInterfaceMtuByName(const char *name, PDWORD mtu)
   return ret;
 }
 
-DWORD getInterfaceStatusByName(const char *name, PDWORD status)
+DWORD getInterfaceStatusByName(const char *name, INTERNAL_IF_OPER_STATUS *status)
 {
   DWORD ret;
   int fd;
diff --git a/dlls/iphlpapi/ifenum.h b/dlls/iphlpapi/ifenum.h
index 228d7ee3053..5600b0bfe6a 100644
--- a/dlls/iphlpapi/ifenum.h
+++ b/dlls/iphlpapi/ifenum.h
@@ -119,6 +119,6 @@ ULONG v6addressesFromIndex(DWORD index, SOCKET_ADDRESS **addrs, ULONG *num_addrs
 char *toIPAddressString(unsigned int addr, char string[16]) DECLSPEC_HIDDEN;
 
 DWORD getInterfaceMtuByName(const char *name, PDWORD mtu) DECLSPEC_HIDDEN;
-DWORD getInterfaceStatusByName(const char *name, PDWORD status) DECLSPEC_HIDDEN;
+DWORD getInterfaceStatusByName(const char *name, INTERNAL_IF_OPER_STATUS *status) DECLSPEC_HIDDEN;
 
 #endif /* ndef WINE_IFENUM_H_ */
diff --git a/dlls/iphlpapi/iphlpapi_main.c b/dlls/iphlpapi/iphlpapi_main.c
index 28185a87131..3f72403c0b7 100644
--- a/dlls/iphlpapi/iphlpapi_main.c
+++ b/dlls/iphlpapi/iphlpapi_main.c
@@ -803,7 +803,8 @@ static ULONG adapterAddressesFromIndex(ULONG family, ULONG flags, DWORD index,
     {
         char name[IF_NAMESIZE], *ptr = (char *)aa + sizeof(IP_ADAPTER_ADDRESSES), *src;
         WCHAR *dst;
-        DWORD buflen, type, status;
+        DWORD buflen, type;
+        INTERNAL_IF_OPER_STATUS status;
 
         memset(aa, 0, sizeof(IP_ADAPTER_ADDRESSES));
         aa->u.s.Length  = sizeof(IP_ADAPTER_ADDRESSES);
diff --git a/include/ipifcons.h b/include/ipifcons.h
index 7fa0a115555..d50f129b62c 100644
--- a/include/ipifcons.h
+++ b/include/ipifcons.h
@@ -231,11 +231,14 @@
 #define MIB_IF_ADMIN_STATUS_DOWN        2
 #define MIB_IF_ADMIN_STATUS_TESTING     3
 
-#define MIB_IF_OPER_STATUS_NON_OPERATIONAL      0
-#define MIB_IF_OPER_STATUS_UNREACHABLE          1
-#define MIB_IF_OPER_STATUS_DISCONNECTED         2
-#define MIB_IF_OPER_STATUS_CONNECTING           3
-#define MIB_IF_OPER_STATUS_CONNECTED            4
-#define MIB_IF_OPER_STATUS_OPERATIONAL          5
+typedef enum _INTERNAL_IF_OPER_STATUS
+{
+    MIB_IF_OPER_STATUS_NON_OPERATIONAL = 0,
+    MIB_IF_OPER_STATUS_UNREACHABLE = 1,
+    MIB_IF_OPER_STATUS_DISCONNECTED = 2,
+    MIB_IF_OPER_STATUS_CONNECTING = 3,
+    MIB_IF_OPER_STATUS_CONNECTED = 4,
+    MIB_IF_OPER_STATUS_OPERATIONAL = 5,
+} INTERNAL_IF_OPER_STATUS;
 
-#endif /* WINE_ROUTING_IPIFCONS_H__ */
+#endif /* WINE_IPIFCONS_H__ */