diff --git a/Zend/tests/type_declarations/mixed/inheritance/mixed_property_inheritance_error7.phpt b/Zend/tests/type_declarations/mixed/inheritance/mixed_property_inheritance_error7.phpt
index 138952b3df56b..0a63cc23df9fd 100644
--- a/Zend/tests/type_declarations/mixed/inheritance/mixed_property_inheritance_error7.phpt
+++ b/Zend/tests/type_declarations/mixed/inheritance/mixed_property_inheritance_error7.phpt
@@ -15,4 +15,4 @@ class Bar extends Foo
 
 ?>
 --EXPECTF--
-Fatal error: Type of Bar::$property1 must not be defined (as in class Foo) in %s on line %d
+Fatal error: Type of Bar::$property1 must be omitted to match the parent definition in class Foo in %s on line %d
diff --git a/Zend/tests/type_declarations/typed_properties_035.phpt b/Zend/tests/type_declarations/typed_properties_035.phpt
index 165479021a77b..ee7085d8837cc 100644
--- a/Zend/tests/type_declarations/typed_properties_035.phpt
+++ b/Zend/tests/type_declarations/typed_properties_035.phpt
@@ -11,4 +11,4 @@ class Baz extends Foo{
 }
 ?>
 --EXPECTF--
-Fatal error: Type of Baz::$bar must not be defined (as in class Foo) in %s on line 6
+Fatal error: Type of Baz::$bar must be omitted to match the parent definition in class Foo in %s on line 6
diff --git a/Zend/zend_inheritance.c b/Zend/zend_inheritance.c
index 3e09206b31566..d85bfeb6ae2ab 100644
--- a/Zend/zend_inheritance.c
+++ b/Zend/zend_inheritance.c
@@ -1507,7 +1507,7 @@ static void do_inherit_property(zend_property_info *parent_info, zend_string *ke
 				}
 			} else if (UNEXPECTED(ZEND_TYPE_IS_SET(child_info->type) && !ZEND_TYPE_IS_SET(parent_info->type))) {
 				zend_error_noreturn(E_COMPILE_ERROR,
-						"Type of %s::$%s must not be defined (as in class %s)",
+						"Type of %s::$%s must be omitted to match the parent definition in class %s",
 						ZSTR_VAL(ce->name),
 						ZSTR_VAL(key),
 						ZSTR_VAL(parent_info->ce->name));