diff --git a/day07/sol.tcl b/day07/sol.tcl
index 3b27e94..f501c97 100755
--- a/day07/sol.tcl
+++ b/day07/sol.tcl
@@ -1,6 +1,5 @@
 #!/usr/bin/env tclsh
-#source ../prelude.tcl
-proc {#} args {}
+source ../prelude.tcl
 
 proc parse input {
     return [join [split [read $input] "\n"]]
diff --git a/prelude.tcl b/prelude.tcl
index 19e91c1..d7d7389 100644
--- a/prelude.tcl
+++ b/prelude.tcl
@@ -2,6 +2,8 @@ package require Tcl 8.6
 namespace import tcl::mathfunc::min
 namespace import tcl::mathfunc::max
 
+proc {#} args {}
+
 proc ladd {list} {
     set t 0
     foreach x $list { incr t $x }