diff --git a/include/villas/node.h b/include/villas/node.h
index 68fe08fff..ed49c6098 100644
--- a/include/villas/node.h
+++ b/include/villas/node.h
@@ -49,6 +49,7 @@ struct node
 
 	int vectorize;		/**< Number of messages to send / recv at once (scatter / gather) */
 	int affinity;		/**< CPU Affinity of this node */
+	int samplelen;		/**< The maximum number of values this node can receive. */
 
 	int id;			/**< An id of this node which is only unique in the scope of it's super-node (VILLASnode instance). */
 
diff --git a/lib/node.c b/lib/node.c
index ae150380c..a7bcf971d 100644
--- a/lib/node.c
+++ b/lib/node.c
@@ -66,9 +66,10 @@ int node_parse(struct node *n, json_t *cfg, const char *name)
 
 	n->name = strdup(name);
 
-	ret = json_unpack_ex(cfg, &err, 0, "{ s: s, s?: i }",
+	ret = json_unpack_ex(cfg, &err, 0, "{ s: s, s?: i, s?: i }",
 		"type", &type,
-		"vectorize", &n->vectorize
+		"vectorize", &n->vectorize,
+		"samplelen", &n->samplelen
 	);
 	if (ret)
 		jerror(&err, "Failed to parse node '%s'", node_name(n));