diff --git a/pkg/shsh/.stack.go.swp b/pkg/shsh/.token.go.swp
similarity index 81%
rename from pkg/shsh/.stack.go.swp
rename to pkg/shsh/.token.go.swp
index 7bc9a93..a2b523f 100644
Binary files a/pkg/shsh/.stack.go.swp and b/pkg/shsh/.token.go.swp differ
diff --git a/pkg/shsh/debug.go b/pkg/shsh/debug.go
index 8cd5371..ad16f5e 100644
--- a/pkg/shsh/debug.go
+++ b/pkg/shsh/debug.go
@@ -1,7 +1,7 @@
 package shsh
 
 import (
-    "collections"
+    "strings"
 )
 
 func FmtToken(arg *Token) string {
@@ -39,17 +39,17 @@ func PrintSExpression(arg *Token) {
     lists.push(arg)
 
 loop:
-    // string builder?
+    var constructor strings.Builder
     i := lists.pop()
     if i == nil {
         goto done
     }
 
     for (iter := i; iter != nil; iter = i.next {
-        // add each string to string builder?
+        constructor.WriteString(FmtToken(iter))
     }
 
-    // print stringbuilder?
+    print(constructor.String())
     goto loop
 
 done: