diff --git a/adafruit_ov5640/__init__.py b/adafruit_ov5640/__init__.py
index 7d60bba..1e82b64 100644
--- a/adafruit_ov5640/__init__.py
+++ b/adafruit_ov5640/__init__.py
@@ -1489,14 +1489,14 @@ def effect(self, value: int) -> None:
 
     @property
     def quality(self) -> int:
-        """Controls the JPEG quality.  Valid range is from 2..55 inclusive"""
+        """Controls the JPEG quality.  Valid range is from 2..54 inclusive"""
         return self._read_register(_COMPRESSION_CTRL07) & 0x3F
 
     @quality.setter
     def quality(self, value: int) -> None:
-        if not 2 <= value < 55:
+        if not 2 <= value <= 54:
             raise ValueError(
-                f"Invalid quality value {value}, use a value from 2..55 inclusive"
+                f"Invalid quality value {value}, use a value from 2..54 inclusive"
             )
         self._write_register(_COMPRESSION_CTRL07, value & 0x3F)