diff --git a/doc/classes/Image.xml b/doc/classes/Image.xml
index f4dc85e4972..89305a28be1 100644
--- a/doc/classes/Image.xml
+++ b/doc/classes/Image.xml
@@ -220,7 +220,7 @@
 			<return type="PoolByteArray">
 			</return>
 			<description>
-				Returns the image's raw data.
+				Returns a copy of the image's raw data.
 			</description>
 		</method>
 		<method name="get_format" qualifiers="const">