diff --git a/registry.txt b/registry.txt
index 4fb6d6af..64b2b8df 100644
--- a/registry.txt
+++ b/registry.txt
@@ -4391,3 +4391,4 @@ https://github.com/mkhuthir/Si4703.git|Contributed|Si4703
 https://github.com/tamctec/gt911-arduino.git|Contributed|TAMC_GT911
 https://github.com/FrankBoesing/FastCRC.git|Contributed|FastCRC
 https://github.com/hideakitai/ArduinoEigen.git|Contributed|Eigen
+https://github.com/arduino-libraries/Arduino_BuiltIn.git|Arduino|Arduino_BuiltIn