diff --git a/src/gui/rhi/qrhi.cpp b/src/gui/rhi/qrhi.cpp
index a39709c7263..f10fc1b5bf8 100644
--- a/src/gui/rhi/qrhi.cpp
+++ b/src/gui/rhi/qrhi.cpp
@@ -8460,7 +8460,8 @@ void QRhiImplementation::prepareForCreate(QRhi *rhi, QRhi::Implementation impl,
 
 /*!
     \return a new QRhi instance with a backend for the graphics API specified
-    by \a impl with the specified \a flags.
+    by \a impl with the specified \a flags. \return \c nullptr if the
+    function fails.
 
     \a params must point to an instance of one of the backend-specific
     subclasses of QRhiInitParams, such as, QRhiVulkanInitParams,