diff --git a/src/utility/tcl/ScriptEngine.hh b/src/utility/tcl/ScriptEngine.hh
index 522e9878..cdee8af9 100644
--- a/src/utility/tcl/ScriptEngine.hh
+++ b/src/utility/tcl/ScriptEngine.hh
@@ -24,7 +24,7 @@
 
 #pragma once
 
-#include <tcl8.6/tcl.h>
+#include <tcl.h>
 
 #include <memory>
 #include <mutex>