diff --git a/src/core/stats.c b/src/core/stats.c
index 12e56950..34e9b270 100644
--- a/src/core/stats.c
+++ b/src/core/stats.c
@@ -105,10 +105,10 @@ void
 stats_display_mem(struct stats_mem *mem, const char *name)
 {
   LWIP_PLATFORM_DIAG(("\nMEM %s\n\t", name));
-  LWIP_PLATFORM_DIAG(("avail: %"U32_F"\n\t", (u32_t)mem->avail));
-  LWIP_PLATFORM_DIAG(("used: %"U32_F"\n\t", (u32_t)mem->used));
-  LWIP_PLATFORM_DIAG(("max: %"U32_F"\n\t", (u32_t)mem->max));
-  LWIP_PLATFORM_DIAG(("err: %"U32_F"\n", (u32_t)mem->err));
+  LWIP_PLATFORM_DIAG(("avail: %"MEM_SIZE_F"\n\t", mem->avail));
+  LWIP_PLATFORM_DIAG(("used: %"MEM_SIZE_F"\n\t", mem->used));
+  LWIP_PLATFORM_DIAG(("max: %"MEM_SIZE_F"\n\t", mem->max));
+  LWIP_PLATFORM_DIAG(("err: %"STAT_COUNTER_F"\n", mem->err));
 }
 
 #if MEMP_STATS
@@ -127,15 +127,15 @@ void
 stats_display_sys(struct stats_sys *sys)
 {
   LWIP_PLATFORM_DIAG(("\nSYS\n\t"));
-  LWIP_PLATFORM_DIAG(("sem.used:  %"U32_F"\n\t", (u32_t)sys->sem.used));
-  LWIP_PLATFORM_DIAG(("sem.max:   %"U32_F"\n\t", (u32_t)sys->sem.max));
-  LWIP_PLATFORM_DIAG(("sem.err:   %"U32_F"\n\t", (u32_t)sys->sem.err));
-  LWIP_PLATFORM_DIAG(("mutex.used: %"U32_F"\n\t", (u32_t)sys->mutex.used));
-  LWIP_PLATFORM_DIAG(("mutex.max:  %"U32_F"\n\t", (u32_t)sys->mutex.max));
-  LWIP_PLATFORM_DIAG(("mutex.err:  %"U32_F"\n\t", (u32_t)sys->mutex.err));
-  LWIP_PLATFORM_DIAG(("mbox.used:  %"U32_F"\n\t", (u32_t)sys->mbox.used));
-  LWIP_PLATFORM_DIAG(("mbox.max:   %"U32_F"\n\t", (u32_t)sys->mbox.max));
-  LWIP_PLATFORM_DIAG(("mbox.err:   %"U32_F"\n", (u32_t)sys->mbox.err));
+  LWIP_PLATFORM_DIAG(("sem.used:  %"STAT_COUNTER_F"\n\t", sys->sem.used));
+  LWIP_PLATFORM_DIAG(("sem.max:   %"STAT_COUNTER_F"\n\t", sys->sem.max));
+  LWIP_PLATFORM_DIAG(("sem.err:   %"STAT_COUNTER_F"\n\t", sys->sem.err));
+  LWIP_PLATFORM_DIAG(("mutex.used: %"STAT_COUNTER_F"\n\t", sys->mutex.used));
+  LWIP_PLATFORM_DIAG(("mutex.max:  %"STAT_COUNTER_F"\n\t", sys->mutex.max));
+  LWIP_PLATFORM_DIAG(("mutex.err:  %"STAT_COUNTER_F"\n\t", sys->mutex.err));
+  LWIP_PLATFORM_DIAG(("mbox.used:  %"STAT_COUNTER_F"\n\t", sys->mbox.used));
+  LWIP_PLATFORM_DIAG(("mbox.max:   %"STAT_COUNTER_F"\n\t", sys->mbox.max));
+  LWIP_PLATFORM_DIAG(("mbox.err:   %"STAT_COUNTER_F"\n", sys->mbox.err));
 }
 #endif /* SYS_STATS */