diff --git a/include/iprtrmib.h b/include/iprtrmib.h
index 630a54b9462..ba84cc5ad5b 100644
--- a/include/iprtrmib.h
+++ b/include/iprtrmib.h
@@ -18,8 +18,7 @@
 #ifndef WINE_IPRTRMIB_H__
 #define WINE_IPRTRMIB_H__
 
-#define MAX_INTERFACE_NAME_LEN 256
-
+#include <mprapi.h>
 #include <ipifcons.h>
 
 #define MAXLEN_IFDESCR 256
diff --git a/include/mprapi.h b/include/mprapi.h
index c5f0edb96dd..2eec3b93ad4 100644
--- a/include/mprapi.h
+++ b/include/mprapi.h
@@ -23,6 +23,15 @@
 #include <ras.h>
 /* FIXME: #include <in6addr.h> */
 
+#define MAX_DEVICE_NAME                 128
+#define MAX_DEVICETYPE_NAME              16
+#define MAX_INTERFACE_NAME_LEN          256
+#define MAX_MEDIA_NAME                   16
+#define MAX_PHONE_NUMBER_LEN            128
+#define MAX_PORT_NAME                    16
+#define MAX_TRANSPORT_NAME_LEN           40
+
+
 #ifdef __cplusplus
 extern "C" {
 #endif