diff --git a/sx128x.cpp b/sx128x.cpp
index 065598d..0a6e0e3 100644
--- a/sx128x.cpp
+++ b/sx128x.cpp
@@ -116,6 +116,8 @@ sx128x::sx128x() :
 bool sx128x::preInit() {
   // setup pins
   pinMode(_ss, OUTPUT);
+  pinMode(_rxen, OUTPUT);
+  pinMode(_txen, OUTPUT);
   // set SS high
   digitalWrite(_ss, HIGH);