diff --git a/main.c b/main.c
index 4a06d713..5c7c4065 100644
--- a/main.c
+++ b/main.c
@@ -19,6 +19,7 @@
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define PI_SENSORS
 #include "main.h"
 
 //#define HAB  // uncomment to change APRS icon from Satellite to Balloon and only BAT telemetry