diff --git a/src/Var.cc b/src/Var.cc
index b6da41e4f2..a480b66d49 100644
--- a/src/Var.cc
+++ b/src/Var.cc
@@ -19,6 +19,8 @@
 
 #include "zeek/script_opt/ScriptOpt.h"
 
+#include "zeek/script_opt/ScriptOpt.h"
+
 namespace zeek::detail {
 
 static ValPtr init_val(Expr* init, const Type* t, ValPtr aggr)