diff --git a/cubesatsim/cubesatsim.h b/cubesatsim/cubesatsim.h
index 5d890ff0..9d881c57 100644
--- a/cubesatsim/cubesatsim.h
+++ b/cubesatsim/cubesatsim.h
@@ -329,6 +329,7 @@ bool cw_stop = false;
 int payload_command = false;
 bool debug_mode = false;
 bool voltage_read = false;
+bool ina219_started = false;
 
 #define PRESSED 0
 #define HELD 0