diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f96a2ef8d0b7aa547bb33f36d76269d9ed515f4e..9e18b50b23e61cc17bf51b9b458d118d19b7ac6b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-06-01  Martin Liska  <mliska@suse.cz>
+
+	* alloc-pool.h: Add ATTRIBUTE_UNUSED for
+	a function local variable. 
+
 2015-06-01  Martin Liska  <mliska@suse.cz>
 
 	* alloc-pool.c (create_alloc_pool): Remove.
diff --git a/gcc/alloc-pool.h b/gcc/alloc-pool.h
index 65087265527dd86ec1280ccefe1c0e9249ab972b..96a1342b9fa96cb5081f7a0c6d0f372575f3c98d 100644
--- a/gcc/alloc-pool.h
+++ b/gcc/alloc-pool.h
@@ -359,7 +359,7 @@ pool_allocator<T>::remove (T *object)
   gcc_checking_assert (m_initialized);
 
   allocation_pool_list *header;
-  int size;
+  int size ATTRIBUTE_UNUSED;
   size = m_elt_size - offsetof (allocation_object<T>, u.data);
 
 #ifdef ENABLE_CHECKING