diff --git a/SlevomatCodingStandard/Sniffs/TypeHints/DNFTypeHintFormatSniff.php b/SlevomatCodingStandard/Sniffs/TypeHints/DNFTypeHintFormatSniff.php
index 78341ea0c..bf8882578 100644
--- a/SlevomatCodingStandard/Sniffs/TypeHints/DNFTypeHintFormatSniff.php
+++ b/SlevomatCodingStandard/Sniffs/TypeHints/DNFTypeHintFormatSniff.php
@@ -75,6 +75,10 @@ public function process(File $phpcsFile, $pointer): void
 			return;
 		}
 
+		if ($this->shortNullable !== self::YES && SniffSettingsHelper::isEnabledByPhpVersion(null, 80000) === false) {
+			$this->shortNullable = self::YES;
+		}
+
 		$tokens = $phpcsFile->getTokens();
 
 		if ($tokens[$pointer]['code'] === T_VARIABLE) {
diff --git a/doc/type-hints.md b/doc/type-hints.md
index 5b482015c..e16a56b97 100644
--- a/doc/type-hints.md
+++ b/doc/type-hints.md
@@ -42,7 +42,7 @@ Sniff provides the following settings:
 * `enable`: either to enable or not this sniff. By default, it is enabled for PHP versions 8.0 or higher.
 * `withSpacesAroundOperators`: `yes` requires spaces around `|` and `&`, `no` requires no space around `|`and `&`. None is set by default so both are enabled.
 * `withSpacesInsideParentheses`: `yes` requires spaces inside parentheses, `no` requires no spaces inside parentheses. None is set by default so both are enabled.
-* `shortNullable`: `yes` requires usage of `?` for nullable type hint, `no` disallows it. None is set by default so both are enabled.
+* `shortNullable`: `yes` requires usage of `?` for nullable type hint, `no` disallows it. None is set by default so both are enabled. For PHP versions below 8.0 it is set to `yes` by default.
 * `nullPosition`: `first` requires `null` on first position in the type hint, `last` requires last position. None is set by default so `null` can be everywhere.
 
 #### SlevomatCodingStandard.TypeHints.LongTypeHints 🔧
@@ -138,6 +138,8 @@ Sniff provides the following settings:
 
 #### SlevomatCodingStandard.TypeHints.UnionTypeHintFormat 🔧
 
+Deprecated: Use `SlevomatCodingStandard.TypeHints.DNFTypeHintFormat` instead
+
 Checks format of union type hints.
 
 Sniff provides the following settings: