diff --git a/src/core/memp.c b/src/core/memp.c
index 31bce1e7..03e3538d 100644
--- a/src/core/memp.c
+++ b/src/core/memp.c
@@ -167,13 +167,6 @@ memp_overflow_check_all(void)
     p = (struct memp *)(size_t)(memp_pools[i]->base);
     for (j = 0; j < memp_pools[i]->num; ++j) {
       memp_overflow_check_element_overflow(p, memp_pools[i]);
-      p = (struct memp*)(size_t)((u8_t*)p + MEMP_SIZE + memp_pools[i]->size + MEMP_SANITY_REGION_AFTER_ALIGNED);
-    }
-  }
-
-  for (i = 0; i < MEMP_MAX; ++i) {
-    p = (struct memp *)(size_t)(memp_pools[i]->base);
-    for (j = 0; j < memp_pools[i]->num; ++j) {
       memp_overflow_check_element_underflow(p, memp_pools[i]);
       p = (struct memp*)(size_t)((u8_t*)p + MEMP_SIZE + memp_pools[i]->size + MEMP_SANITY_REGION_AFTER_ALIGNED);
     }