diff --git a/esphome/components/fingerprint_grow/fingerprint_grow.cpp b/esphome/components/fingerprint_grow/fingerprint_grow.cpp
index d27b0ca4cd..4043f32dcb 100644
--- a/esphome/components/fingerprint_grow/fingerprint_grow.cpp
+++ b/esphome/components/fingerprint_grow/fingerprint_grow.cpp
@@ -77,10 +77,12 @@ void FingerprintGrowComponent::finish_enrollment(uint8_t result) {
     this->enrollment_done_callback_.call(this->enrollment_slot_);
     this->get_fingerprint_count_();
   } else {
-    this->enrollment_failed_callback_.call(this->enrollment_slot_);
+    if (this->enrollment_slot_ != ENROLLMENT_SLOT_UNUSED) {
+      this->enrollment_failed_callback_.call(this->enrollment_slot_);
+    }
   }
   this->enrollment_image_ = 0;
-  this->enrollment_slot_ = 0;
+  this->enrollment_slot_ = ENROLLMENT_SLOT_UNUSED;
   if (this->enrolling_binary_sensor_ != nullptr) {
     this->enrolling_binary_sensor_->publish_state(false);
   }
diff --git a/esphome/components/fingerprint_grow/fingerprint_grow.h b/esphome/components/fingerprint_grow/fingerprint_grow.h
index fd316237f7..f414146e64 100644
--- a/esphome/components/fingerprint_grow/fingerprint_grow.h
+++ b/esphome/components/fingerprint_grow/fingerprint_grow.h
@@ -13,6 +13,8 @@ namespace fingerprint_grow {
 
 static const uint16_t START_CODE = 0xEF01;
 
+static const uint16_t ENROLLMENT_SLOT_UNUSED = 0xFFFF;
+
 enum GrowPacketType {
   COMMAND = 0x01,
   DATA = 0x02,
@@ -158,7 +160,7 @@ class FingerprintGrowComponent : public PollingComponent, public uart::UARTDevic
   uint32_t new_password_ = -1;
   GPIOPin *sensing_pin_{nullptr};
   uint8_t enrollment_image_ = 0;
-  uint16_t enrollment_slot_ = 0;
+  uint16_t enrollment_slot_ = ENROLLMENT_SLOT_UNUSED;
   uint8_t enrollment_buffers_ = 5;
   bool waiting_removal_ = false;
   uint32_t last_aura_led_control_ = 0;