diff --git a/src/widgets/dialogs/qfiledialog.cpp b/src/widgets/dialogs/qfiledialog.cpp
index af2007a4d18..81f0cde407f 100644
--- a/src/widgets/dialogs/qfiledialog.cpp
+++ b/src/widgets/dialogs/qfiledialog.cpp
@@ -3144,7 +3144,7 @@ void QFileDialogPrivate::createWidgets()
 
     // filetype
     qFileDialogUi->fileTypeCombo->setDuplicatesEnabled(false);
-    qFileDialogUi->fileTypeCombo->setSizeAdjustPolicy(QComboBox::AdjustToMinimumContentsLength);
+    qFileDialogUi->fileTypeCombo->setSizeAdjustPolicy(QComboBox::AdjustToContentsOnFirstShow);
     qFileDialogUi->fileTypeCombo->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
     QObject::connect(qFileDialogUi->fileTypeCombo, SIGNAL(activated(int)),
                      q, SLOT(_q_useNameFilter(int)));
diff --git a/src/widgets/widgets/qcombobox.cpp b/src/widgets/widgets/qcombobox.cpp
index 8c05c6de7ac..df8e7b4a3fb 100644
--- a/src/widgets/widgets/qcombobox.cpp
+++ b/src/widgets/widgets/qcombobox.cpp
@@ -894,7 +894,7 @@ QStyleOptionComboBox QComboBoxPrivateContainer::comboStyleOption() const
 
     \value AdjustToContents              The combobox will always adjust to the contents
     \value AdjustToContentsOnFirstShow   The combobox will adjust to its contents the first time it is shown.
-    \value AdjustToMinimumContentsLength Use AdjustToContents or AdjustToContentsOnFirstShow instead.
+    \omitvalue AdjustToMinimumContentsLength
     \value AdjustToMinimumContentsLengthWithIcon The combobox will adjust to \l minimumContentsLength plus space for an icon. For performance reasons use this policy on large models.
 */
 
diff --git a/src/widgets/widgets/qcombobox.h b/src/widgets/widgets/qcombobox.h
index 1f6e2fcdb30..e0b213bc893 100644
--- a/src/widgets/widgets/qcombobox.h
+++ b/src/widgets/widgets/qcombobox.h
@@ -137,8 +137,11 @@ public:
     enum SizeAdjustPolicy {
         AdjustToContents,
         AdjustToContentsOnFirstShow,
-        AdjustToMinimumContentsLength, // ### Qt 6: remove
-        AdjustToMinimumContentsLengthWithIcon
+#if QT_DEPRECATED_SINCE(5, 15)
+        AdjustToMinimumContentsLength Q_DECL_ENUMERATOR_DEPRECATED_X(
+            "Use AdjustToContents or AdjustToContentsOnFirstShow"), // ### Qt 6: remove
+#endif
+        AdjustToMinimumContentsLengthWithIcon = AdjustToContentsOnFirstShow + 2
     };
     Q_ENUM(SizeAdjustPolicy)