diff --git a/language/oop5/magic.xml b/language/oop5/magic.xml
index 2d601de420..82c528a0ee 100644
--- a/language/oop5/magic.xml
+++ b/language/oop5/magic.xml
@@ -114,7 +114,10 @@ class Connection
    <title><literal>__toString</literal></title>
    <para>
     The <literal>__toString</literal> method allows a class to decide
-    how it will react when it is converted to a string.
+    how it will react when it is treated like a string. For example,
+    what <literal>echo $obj;</literal> will print. This method must
+    return a string, as otherwise a fatal <constant>E_RECOVERABLE_ERROR</constant>
+    level error is emitted.
    </para>
    <example>
     <title>Simple example</title>