diff --git a/doc/gatt-api.txt b/doc/gatt-api.txt
index 9579381..f58de23 100644
--- a/doc/gatt-api.txt
+++ b/doc/gatt-api.txt
@@ -74,6 +74,7 @@ Methods		array{byte} ReadValue(dict options)
 					 org.bluez.Error.InProgress
 					 org.bluez.Error.NotPermitted
 					 org.bluez.Error.NotAuthorized
+					 org.bluez.Error.InvalidOffset
 					 org.bluez.Error.NotSupported
 
 		void WriteValue(array{byte} value, dict options)
diff --git a/src/gatt-database.c b/src/gatt-database.c
index 1903e08..ce0e03f 100644
--- a/src/gatt-database.c
+++ b/src/gatt-database.c
@@ -1692,6 +1692,9 @@ static uint8_t dbus_error_to_att_ecode(const char *error_name)
 	if (strcmp(error_name, "org.bluez.Error.InvalidValueLength") == 0)
 		return BT_ATT_ERROR_INVALID_ATTRIBUTE_VALUE_LEN;
 
+	if (strcmp(error_name, "org.bluez.Error.InvalidOffset") == 0)
+		return BT_ATT_ERROR_INVALID_OFFSET;
+
 	if (strcmp(error_name, "org.bluez.Error.InProgress") == 0)
 		return BT_ERROR_ALREADY_IN_PROGRESS;