diff --git a/src/pool.c b/src/pool.c
index b493a93..59cc508 100644
--- a/src/pool.c
+++ b/src/pool.c
@@ -156,6 +156,10 @@
 	int limit = pool->limit;
 	void *ptr = NULL;
 
+#ifdef DEBUG_FAIL_ALLOC
+	if (mem_should_fail(pool))
+		return NULL;
+#endif
 	if (limit && allocated >= limit) {
 		activity[tid].pool_fail++;
 		return NULL;
@@ -218,6 +222,10 @@
 	int limit = pool->limit;
 	int allocated = pool->allocated, allocated_orig = allocated;
 
+#ifdef DEBUG_FAIL_ALLOC
+	if (mem_should_fail(pool))
+		return NULL;
+#endif
 	/* stop point */
 	avail += pool->used;