diff --git a/components/ratgdo/ratgdo.cpp b/components/ratgdo/ratgdo.cpp
index f44ba6c..723de93 100644
--- a/components/ratgdo/ratgdo.cpp
+++ b/components/ratgdo/ratgdo.cpp
@@ -53,11 +53,11 @@ namespace ratgdo {
         this->output_gdo_pin_->pin_mode(gpio::FLAG_OUTPUT);
         this->input_gdo_pin_->pin_mode(gpio::FLAG_INPUT | gpio::FLAG_PULLUP);
         this->input_obst_pin_->pin_mode(gpio::FLAG_INPUT);
+        
+        this->input_obst_pin_->attach_interrupt(RATGDOStore::isr_obstruction, &this->isr_store_, gpio::INTERRUPT_ANY_EDGE);
 
         this->sw_serial_.begin(9600, SWSERIAL_8N1, this->input_gdo_pin_->get_pin(), this->output_gdo_pin_->get_pin(), true);
 
-        this->input_obst_pin_->attach_interrupt(RATGDOStore::isr_obstruction, &this->isr_store_, gpio::INTERRUPT_ANY_EDGE);
-
         ESP_LOGV(TAG, "Syncing rolling code counter after reboot...");
 
         // many things happening at startup, use some delay for sync