diff --git a/pkg/ccn-lite/ccn-lite-riot.h b/pkg/ccn-lite/ccn-lite-riot.h
index 052b25a6b9..a756ecad19 100644
--- a/pkg/ccn-lite/ccn-lite-riot.h
+++ b/pkg/ccn-lite/ccn-lite-riot.h
@@ -136,6 +136,16 @@ extern "C" {
  */
 #define CCNL_PREFIX_BUFSIZE     (50)
 
+/**
+ * Message type for signalling a timeout while waiting for a content chunk
+ */
+#define CCNL_MSG_TIMEOUT        (0x1701)
+
+/**
+ * Message type for advancing the ageing timer
+ */
+#define CCNL_MSG_AGEING         (0x1702)
+
 /**
  * Struct holding CCN-Lite's central relay information
  */