diff --git a/lib/socket.c b/lib/socket.c
index e765137..1597f56 100644
--- a/lib/socket.c
+++ b/lib/socket.c
@@ -759,6 +759,7 @@ int rpc_queue_length(struct rpc_context *rpc)
 {
 	int i=0;
 	struct rpc_pdu *pdu;
+	unsigned int n;
 
 	assert(rpc->magic == RPC_CONTEXT_MAGIC);