diff --git a/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProvider.java b/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProvider.java
index 45ae339..50d54dc 100644
--- a/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProvider.java
+++ b/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProvider.java
@@ -152,7 +152,7 @@
 
     HashMap<String, TunnelId> tunnelMap = new HashMap<String, TunnelId>();
     HashMap<TunnelId, TunnelStatistics> tunnelStatisticsMap = new HashMap<>();
-    private HashMap<Long, TunnelStatsCollector> collectors = Maps.newHashMap();
+    private HashMap<String, TunnelStatsCollector> collectors = Maps.newHashMap();
 
     private InnerTunnelProvider listener = new InnerTunnelProvider();