diff --git a/src/config.h b/src/config.h
index fbfd0aeb0..12f72a678 100644
--- a/src/config.h
+++ b/src/config.h
@@ -36,7 +36,12 @@
  *
  * Should not be less than size of any of ECMA Object Model's data types.
  */
-#define CONFIG_MEM_POOL_CHUNK_SIZE 16
+#define CONFIG_MEM_POOL_CHUNK_SIZE 8
+
+/**
+ * Minimum number of chunks in a pool allocated by pools' manager.
+ */
+#define CONFIG_MEM_LEAST_CHUNK_NUMBER_IN_POOL 32
 
 /**
  * Size of heap chunk
diff --git a/src/liballocator/mem-poolman.c b/src/liballocator/mem-poolman.c
index ffd1be688..e62aa6efe 100644
--- a/src/liballocator/mem-poolman.c
+++ b/src/liballocator/mem-poolman.c
@@ -100,10 +100,9 @@ mem_pools_alloc (void)
   {
     /**
      * Space, at least for header and eight chunks.
-     *
-     * TODO: Config.
      */
-    size_t pool_size = mem_heap_recommend_allocation_size (sizeof (mem_pool_state_t) + 8 * MEM_POOL_CHUNK_SIZE);
+    size_t pool_chunks_area_size = CONFIG_MEM_LEAST_CHUNK_NUMBER_IN_POOL * MEM_POOL_CHUNK_SIZE;
+    size_t pool_size = mem_heap_recommend_allocation_size (sizeof (mem_pool_state_t) + pool_chunks_area_size);
 
     mem_pool_state_t *pool_state = (mem_pool_state_t*) mem_heap_alloc_block (pool_size, MEM_HEAP_ALLOC_LONG_TERM);