diff --git a/libsigrok.h b/libsigrok.h
index 9036b05f..2232071c 100644
--- a/libsigrok.h
+++ b/libsigrok.h
@@ -550,6 +550,7 @@ struct sr_probe {
 };
 
 struct sr_probe_group {
+	char *name;
 	/* List of sr_probe structs. */
 	GSList *probes;
 	/* Private data for driver use. */