diff --git a/include/villas/log.h b/include/villas/log.h
index bc20356fe..bda5ee582 100644
--- a/include/villas/log.h
+++ b/include/villas/log.h
@@ -63,13 +63,14 @@ enum log_facilities {
 	LOG_TC =		(1L << 21),
 	LOG_IF =		(1L << 22),
 	LOG_ADVIO =		(1L << 23),
+	LOG_IO =		(1L << 24),
 
 	/* Node-types */
-	LOG_SOCKET =		(1L << 24),
-	LOG_FILE =		(1L << 25),
-	LOG_FPGA =		(1L << 26),
-	LOG_NGSI =		(1L << 27),
-	LOG_WEBSOCKET =		(1L << 28),
+	LOG_SOCKET =		(1L << 25),
+	LOG_FILE =		(1L << 26),
+	LOG_FPGA =		(1L << 27),
+	LOG_NGSI =		(1L << 28),
+	LOG_WEBSOCKET =		(1L << 29),
 	LOG_OPAL =		(1L << 30),
 	LOG_COMEDI =		(1L << 31),
 	LOG_IB =		(1L << 32),
diff --git a/lib/log.c b/lib/log.c
index a5913d491..e024cea26 100644
--- a/lib/log.c
+++ b/lib/log.c
@@ -78,6 +78,7 @@ static const char *facilities_strs[] = {
 	"tc",		/* LOG_TC */
 	"if",		/* LOG_IF */
 	"advio",	/* LOG_ADVIO */
+	"io",		/* LOG_IO */
 
 	/* Node-types */
 	"socket",	/* LOG_SOCKET */