diff --git a/armsrc/Standalone/lf_em4100rswb.c b/armsrc/Standalone/lf_em4100rswb.c
index aaf82b5b5..b3f2c571e 100644
--- a/armsrc/Standalone/lf_em4100rswb.c
+++ b/armsrc/Standalone/lf_em4100rswb.c
@@ -272,7 +272,7 @@ static int ExecuteMode(int mode, int slot) {
         case LF_RWSB_MODE_SIM:
             Dbprintf("[=] >>  Sim mode started  <<");
             construct_EM410x_emul(rev_quads(low[slot]));
-            SimulateTagLowFrequency(buflen, 0, 1);
+            SimulateTagLowFrequency(buflen, 0, true);
             return LF_RWSB_UNKNOWN_RESULT;
         case LF_RWSB_MODE_WRITE:
             Dbprintf("[!!] >>  Write mode started  <<");
diff --git a/armsrc/Standalone/lf_em4100rwc.c b/armsrc/Standalone/lf_em4100rwc.c
index 5df6e1a90..35f9b32b0 100644
--- a/armsrc/Standalone/lf_em4100rwc.c
+++ b/armsrc/Standalone/lf_em4100rwc.c
@@ -194,7 +194,7 @@ void RunMod(void) {
                     construct_EM410x_emul(rev_quads(low[selected]));
                     flash_leds(100, 5);
 
-                    SimulateTagLowFrequency(buflen, 0, 1);
+                    SimulateTagLowFrequency(buflen, 0, true);
                     led_slot(selected);
                     state = 0; // Switch to select mode
                 }