diff --git a/clang/test/Sema/ms-inline-asm.c b/clang/test/Sema/ms-inline-asm.c
index e1d79c116c80..d4227027d7cb 100644
--- a/clang/test/Sema/ms-inline-asm.c
+++ b/clang/test/Sema/ms-inline-asm.c
@@ -99,3 +99,7 @@ void t4() {
   __asm { mov eax, fs:[0].a } // expected-error {{Unable to lookup field reference!}}
   __asm { mov eax, fs:[0]. A.a } // expected-error {{Unexpected token type!}}
 }
+
+void test_operand_size() {
+  __asm { call word t4 } // expected-error {{Expected 'PTR' or 'ptr' token!}}
+}