diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp
index 424b8b3ac4d..48eb5b4567c 100644
--- a/src/corelib/global/qglobal.cpp
+++ b/src/corelib/global/qglobal.cpp
@@ -3971,8 +3971,9 @@ bool qunsetenv(const char *varName)
     \list
     \li \c Q_PRIMITIVE_TYPE specifies that \a Type is a POD (plain old
        data) type with no constructor or destructor, or else a type where
-       every bit pattern is a valid object and memcpy() creates a valid
-       independent copy of the object.
+       every bit pattern is a valid object; memset()ting memory to zero
+       creates a value-initialized instance of the type; and memcpy()ing
+       creates a valid independent copy of an object.
     \li \c Q_RELOCATABLE_TYPE specifies that \a Type has a constructor
        and/or a destructor but can be moved in memory using \c
        memcpy().