diff --git a/Zend/tests/typehints/fq_nullable.phpt b/Zend/tests/typehints/fq_nullable.phpt
new file mode 100644
index 00000000000..24ba2ffa620
--- /dev/null
+++ b/Zend/tests/typehints/fq_nullable.phpt
@@ -0,0 +1,13 @@
+--TEST--
+Fully-qualified nullable parameter type
+--FILE--
+<?php
+
+namespace Foo;
+function test(?\stdClass $param) {}
+test(new \stdClass);
+
+?>
+===DONE===
+--EXPECT--
+===DONE===
diff --git a/Zend/zend_compile.c b/Zend/zend_compile.c
index fc77c6ad2f8..b61a8195282 100644
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
@@ -5140,6 +5140,7 @@ void zend_compile_params(zend_ast *ast, zend_ast *return_type_ast) /* {{{ */
 			op_array->fn_flags |= ZEND_ACC_HAS_TYPE_HINTS;
 			arg_info->allow_null = has_null_default || is_explicitly_nullable;
 
+			type_ast->attr &= ~ZEND_TYPE_NULLABLE;
 			zend_compile_typename(type_ast, arg_info);
 
 			if (arg_info->type_hint == IS_VOID) {