diff --git a/Installation/config/support/test_CORE.C b/Installation/config/support/test_CORE.C
index 72345919404..f9ab222169f 100644
--- a/Installation/config/support/test_CORE.C
+++ b/Installation/config/support/test_CORE.C
@@ -37,7 +37,7 @@ int main() { return 0; }
 
 #else
 
-#include "CORE.h"
+#include <CORE/CORE.h>
 #include <iostream>
 
 int main()