diff --git a/quad/quad/quad.rkt b/quad/quad/quad.rkt
index e5207f97..0e8f2f1d 100644
--- a/quad/quad/quad.rkt
+++ b/quad/quad/quad.rkt
@@ -5,9 +5,9 @@
 
 (define (default-size-proc q sig)
   (match (elems q)
-    [(list (? char-whitespace? c)) (case sig
-                              [(start end) '(0 0)]
-                              [else '(1 1)])]
+    [(list (? (λ (x) (and (char? x) (char-whitespace? x))) c)) (case sig
+                                                                 [(start end) '(0 0)]
+                                                                 [else '(1 1)])]
     [else '(1 1)]))
 
 (struct $quad (attrs elems) #:transparent #:mutable
diff --git a/quad/quad/typewriter.rkt b/quad/quad/typewriter.rkt
index 94c2bc8e..717e1cc9 100644
--- a/quad/quad/typewriter.rkt
+++ b/quad/quad/typewriter.rkt
@@ -20,18 +20,12 @@
   (wrap xs size debug
         #:break-val (break #\newline)
         #:optional-break-proc optional-break?
-        #:size-proc (λ (q) (let ([val (hash-ref (attrs q) 'size (λ ()
-                                                                  (if (memv (car (elems q)) '(#\space))
-                                                                      (delay (values 0 7.2 0))
-                                                                      (delay (values 7.2 7.2 7.2)))))])
-                             (if (promise? val) (force val) (val))))
         #:finish-segment-proc (λ (pcs) (list ($line (hasheq) (map charify pcs))))))
 
 (define (pbs xs size [debug #f])
   (wrap xs size debug
         #:break-val (break #\page)
         #:optional-break-proc $break?
-        #:size-proc (λ (q) (force (hash-ref (attrs q) 'size (λ () (delay (values 12 12 12))))))
         #:finish-segment-proc (λ (pcs) (list ($page (hasheq) (filter-not $break? pcs))))))
 
 (define (typeset args)