diff --git a/src/Reflection/InitializerExprTypeResolver.php b/src/Reflection/InitializerExprTypeResolver.php
index 8b38c5a383..65c4c09bc7 100644
--- a/src/Reflection/InitializerExprTypeResolver.php
+++ b/src/Reflection/InitializerExprTypeResolver.php
@@ -2159,8 +2159,11 @@ public function getBitwiseNotType(Expr $expr, callable $getTypeCallback): Type
 
 				return TypeCombinator::intersect(...$accessories);
 			}
+			if ($type instanceof ConstantIntegerType || $type instanceof ConstantFloatType) {
+				return new ConstantIntegerType(~ (int) $type->getValue());
+			}
 			if ($type->isInteger()->yes() || $type->isFloat()->yes()) {
-				return new IntegerType(); //no const types here, result depends on PHP_INT_SIZE
+				return new IntegerType();
 			}
 			return new ErrorType();
 		});
diff --git a/tests/PHPStan/Analyser/nsrt/bitwise-not.php b/tests/PHPStan/Analyser/nsrt/bitwise-not.php
index 37c29f8f97..01623d2d5b 100644
--- a/tests/PHPStan/Analyser/nsrt/bitwise-not.php
+++ b/tests/PHPStan/Analyser/nsrt/bitwise-not.php
@@ -17,5 +17,5 @@ function foo(int $int, string $string, float $float, $stringOrInt, string $nonEm
 	assertType('int', ~$float);
 	assertType('int|string', ~$stringOrInt);
 	assertType("'" . (~"abc") . "'", ~"abc");
-	assertType('int', ~1); //result is dependent on PHP_INT_SIZE
+	assertType('-2', ~1);
 }