diff --git a/clang/test/Sema/vector-cast.c b/clang/test/Sema/vector-cast.c
index 6d22deec9464..0415c13990c8 100644
--- a/clang/test/Sema/vector-cast.c
+++ b/clang/test/Sema/vector-cast.c
@@ -51,6 +51,6 @@ typedef short short_sizeof_pointer __attribute__((vector_size(sizeof(void*))));
 void f5() {
   short_sizeof_pointer v;
   void *ptr;
-  v = ptr; // expected-error {{assigning to 'short_sizeof_pointer' (vector of 4 'short' values) from incompatible type 'void *'}}
+  v = ptr; // expected-error-re {{assigning to 'short_sizeof_pointer' (vector of {{[0-9]+}} 'short' values) from incompatible type 'void *'}}
   ptr = v; // expected-error {{assigning to 'void *' from incompatible type 'short_sizeof_pointer'}}
 }