diff --git a/GsmWithGnss.c b/GsmWithGnss.c
index 819c2e0..2db08b5 100644
--- a/GsmWithGnss.c
+++ b/GsmWithGnss.c
@@ -143,7 +143,7 @@ void GsmWithGnss_SetNetworkRegistration(tGsmWithGnss *env, bool value) {
     ControllableSwitch_Set(&env->enableNetworkSwitch, value);
 }
 
-bool GsmWithGnss_WaitNetworkRegistration(tGsmWithGnss *env, uint16_t timeReg) {
+bool GsmWithGnss_WaitNetworkRegistration(tGsmWithGnss *env, uint32_t timeReg) {
 
     uint32_t timeEnd = SystemGetMs() + timeReg;