diff --git a/src/core/stats.c b/src/core/stats.c
index fbbf1a69..2f236638 100644
--- a/src/core/stats.c
+++ b/src/core/stats.c
@@ -76,8 +76,6 @@ stats_display_pbuf(struct stats_pbuf *pbuf)
   LWIP_PLATFORM_DIAG(("used: %"STAT_COUNTER_F"\n\t", pbuf->used)); 
   LWIP_PLATFORM_DIAG(("max: %"STAT_COUNTER_F"\n\t", pbuf->max)); 
   LWIP_PLATFORM_DIAG(("err: %"STAT_COUNTER_F"\n\t", pbuf->err)); 
-  LWIP_PLATFORM_DIAG(("alloc_locked: %"STAT_COUNTER_F"\n\t", pbuf->alloc_locked)); 
-  LWIP_PLATFORM_DIAG(("refresh_locked: %"STAT_COUNTER_F"\n", pbuf->refresh_locked));  
 }
 
 void
diff --git a/src/include/lwip/stats.h b/src/include/lwip/stats.h
index e18970cc..d4a419ee 100644
--- a/src/include/lwip/stats.h
+++ b/src/include/lwip/stats.h
@@ -80,9 +80,6 @@ struct stats_pbuf {
   STAT_COUNTER used;
   STAT_COUNTER max;  
   STAT_COUNTER err;
-
-  STAT_COUNTER alloc_locked;
-  STAT_COUNTER refresh_locked;
 };
 
 struct stats_syselem {