diff --git a/adafruit_as7341.py b/adafruit_as7341.py
index 9b61306..65e9535 100644
--- a/adafruit_as7341.py
+++ b/adafruit_as7341.py
@@ -510,7 +510,7 @@ def _configure_f5_f8(self) -> None:
     def flicker_detected(self) -> Optional[int]:
         """The flicker frequency detected in Hertz"""
         if not self._flicker_detection_1k_configured:
-            AttributeError(
+            raise AttributeError(
                 "Flicker detection must be enabled to access `flicker_detected`"
             )
         flicker_status = self._fd_status