diff --git a/libgomp/allocator.c b/libgomp/allocator.c
index 66308ab6669..4e293992d22 100644
--- a/libgomp/allocator.c
+++ b/libgomp/allocator.c
@@ -348,7 +348,7 @@ omp_free (void *ptr, omp_allocator_handle_t allocator)
 			      MEMMODEL_RELAXED);
 #else
 	  gomp_mutex_lock (&allocator_data->lock);
-	  allocator_data->used_pool_size -= data->new_size;
+	  allocator_data->used_pool_size -= data->size;
 	  gomp_mutex_unlock (&allocator_data->lock);
 #endif
 	}