diff --git a/src/include/lwip/init.h b/src/include/lwip/init.h
index 70351b86..2dd642ab 100644
--- a/src/include/lwip/init.h
+++ b/src/include/lwip/init.h
@@ -39,28 +39,40 @@ extern "C" {
 #endif
 
 /** X.x.x: Major version of the stack */
-#define LWIP_VERSION_MAJOR      1U
+#define LWIP_VERSION_MAJOR      2
 /** x.X.x: Minor version of the stack */
-#define LWIP_VERSION_MINOR      5U
+#define LWIP_VERSION_MINOR      0
 /** x.x.X: Revision of the stack */
-#define LWIP_VERSION_REVISION   0U
+#define LWIP_VERSION_REVISION   0
 /** For release candidates, this is set to 1..254
   * For official releases, this is set to 255 (LWIP_RC_RELEASE)
   * For development versions (Git), this is set to 0 (LWIP_RC_DEVELOPMENT) */
-#define LWIP_VERSION_RC         0U
+#define LWIP_VERSION_RC         0
 
 /** LWIP_VERSION_RC is set to LWIP_RC_RELEASE for official releases */
-#define LWIP_RC_RELEASE         255U
+#define LWIP_RC_RELEASE         255
 /** LWIP_VERSION_RC is set to LWIP_RC_DEVELOPMENT for Git versions */
-#define LWIP_RC_DEVELOPMENT     0U
+#define LWIP_RC_DEVELOPMENT     0
 
 #define LWIP_VERSION_IS_RELEASE     (LWIP_VERSION_RC == LWIP_RC_RELEASE)
 #define LWIP_VERSION_IS_DEVELOPMENT (LWIP_VERSION_RC == LWIP_RC_DEVELOPMENT)
 #define LWIP_VERSION_IS_RC          ((LWIP_VERSION_RC != LWIP_RC_RELEASE) && (LWIP_VERSION_RC != LWIP_RC_DEVELOPMENT))
 
+/* Some helper defines to get a version string
+#define LWIP_VERSTR2(x) #x
+#define LWIP_VERSTR(x) LWIP_VERSTR2(x)
+#if LWIP_VERSION_IS_RELEASE
+#define LWIP_VERSION_STRING_SUFFIX ""
+#elif LWIP_VERSION_IS_DEVELOPMENT
+#define LWIP_VERSION_STRING_SUFFIX "d"
+#else
+#define LWIP_VERSION_STRING_SUFFIX "rc" LWIP_VERSTR(LWIP_VERSION_RC)
+#endif
+
 /** Provides the version of the stack */
-#define LWIP_VERSION   (LWIP_VERSION_MAJOR << 24   | LWIP_VERSION_MINOR << 16 | \
-                        LWIP_VERSION_REVISION << 8 | LWIP_VERSION_RC)
+#define LWIP_VERSION   (((u32_t)LWIP_VERSION_MAJOR) << 24   | ((u32_t)LWIP_VERSION_MINOR) << 16 | \
+                        ((u32_t)LWIP_VERSION_REVISION) << 8 | ((u32_t)LWIP_VERSION_RC))
+#define LWIP_VERSION_STRING     LWIP_VERSTR(LWIP_VERSION_MAJOR) "." LWIP_VERSTR(LWIP_VERSION_MINOR) "." LWIP_VERSTR(LWIP_VERSION_REVISION) LWIP_VERSION_STRING_SUFFIX
 
 /* Modules initialization */
 void lwip_init(void);