1 files changed, 2 insertions, 0 deletions
diff --git a/profile.h b/profile.h
index d6f3f9cd8..0a7abf598 100644
--- a/profile.h
+++ b/profile.h
@@ -86,6 +86,8 @@ int get_maxtime(struct plot_info *pi);
 int get_maxdepth(struct plot_info *pi);
 
 #define DILUENT_CYLINDER 1
+#define DILUENT 1
+#define NONDILUENT 0
 #define SENSOR_PR 0
 #define INTERPOLATED_PR 1
 #define SENSOR_PRESSURE(_entry) (_entry)->pressure[SENSOR_PR]