diff --git a/Examples/test-suite/cpp11_thread_local.i b/Examples/test-suite/cpp11_thread_local.i
index 21f21859b..7a82f7582 100644
--- a/Examples/test-suite/cpp11_thread_local.i
+++ b/Examples/test-suite/cpp11_thread_local.i
@@ -16,6 +16,7 @@ thread_local static int tsval;
 extern thread_local int etval;
 thread_local extern int teval;
 extern "C" thread_local int ectval;
+extern "C" { thread_local int ectval2; }
 extern "C++" thread_local int ecpptval;
 
 thread_local int ThreadLocals::stval = 11;
@@ -31,5 +32,6 @@ thread_local const int ThreadLocals::tscval99;
 thread_local int etval = 33;
 thread_local int teval = 44;
 thread_local int ectval = 55;
+thread_local int ectval2 = 56;
 thread_local int ecpptval = 66;
 %}