diff --git a/client/comms.c b/client/comms.c
index 8d2c8f733..f3dbf09ce 100644
--- a/client/comms.c
+++ b/client/comms.c
@@ -733,6 +733,8 @@ bool WaitForResponseTimeoutW(uint32_t cmd, PacketResponseNG *response, size_t ms
             PrintAndLogEx(INFO, "You can cancel this operation by pressing the pm3 button");
             show_warning = false;
         }
+        // just to avoid CPU busy loop:
+        msleep(10);
     }
     return false;
 }