diff --git a/src/testlib/qtestcase.qdoc b/src/testlib/qtestcase.qdoc
index 9950418a5c..4534f3284f 100644
--- a/src/testlib/qtestcase.qdoc
+++ b/src/testlib/qtestcase.qdoc
@@ -123,10 +123,11 @@
    \snippet code/src_qtestlib_qtestcase.cpp 2
 
    When comparing floating-point types (\c float, \c double, and \c qfloat16),
-   \l {qFuzzyCompare()} is used for finite values. If \l {qFuzzyIsNull()} is true for
-   both values, they are also considered equal. Infinities match if they have
-   the same sign, and any NaN as actual value matches with any NaN as expected
-   value (even though NaN != NaN, even when they're identical).
+   \l {qFuzzyCompare()} is used for finite values. If \l {<QtGlobal>::}{qFuzzyIsNull()}
+   is true for both values, they are also considered equal. Infinities
+   match if they have the same sign, and any NaN as actual value matches
+   with any NaN as expected value (even though NaN != NaN, even when
+   they're identical).
 
    When comparing QList, arrays and initializer lists of the value type
    can be passed as expected value: