diff --git a/net/dccp/probe.c b/net/dccp/probe.c
index 0bcdc92..81368a7 100644
--- a/net/dccp/probe.c
+++ b/net/dccp/probe.c
@@ -42,7 +42,7 @@
 
 static const char procname[] = "dccpprobe";
 
-struct {
+static struct {
 	struct kfifo	  *fifo;
 	spinlock_t	  lock;
 	wait_queue_head_t wait;