diff --git a/collar.cpp b/collar.cpp
index 25634ef..f4ee3ab 100644
--- a/collar.cpp
+++ b/collar.cpp
@@ -174,7 +174,6 @@ uint8_t buffer[] = {
 
 void do_send(osjob_t* j){
   // Check if there is not a current TX/RX job running
-  is_sending = 1;
   if (LMIC.opmode & OP_TXRXPEND) {
     Serial.println(F("OP_TXRXPEND, not sending"));
   } else {
@@ -199,6 +198,7 @@ void do_gps(osjob_t* j){
     gps.encode(softserial_read());
   }
   if(!is_sending && gps.location.isValid()) {
+    is_sending = 1;
     do_send(&sendjob);
   }
   os_setTimedCallback(&gpsjob, os_getTime()+sec2osticks(GPS_INTERVAL), do_gps);