diff --git a/net/core/flow.c b/net/core/flow.c
index 5df3e29..104c25d 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -44,7 +44,7 @@
 
 #define flow_table(cpu) (per_cpu(flow_tables, cpu))
 
-static kmem_cache_t *flow_cachep __read_mostly;
+static struct kmem_cache *flow_cachep __read_mostly;
 
 static int flow_lwm, flow_hwm;