diff --git a/test_regress/t/TestVpi.h b/test_regress/t/TestVpi.h
index 4c3bbc651..d2428ba4a 100644
--- a/test_regress/t/TestVpi.h
+++ b/test_regress/t/TestVpi.h
@@ -11,6 +11,7 @@
 
 #include "sv_vpi_user.h"
 #include "vpi_user.h"
+
 #include <iostream>
 
 // Avoid C++11 in this file as not all simulators allow it