diff --git a/scheme/ikarus.boot.prebuilt b/scheme/ikarus.boot.prebuilt
index 1a53925..a9a66dd 100644
Binary files a/scheme/ikarus.boot.prebuilt and b/scheme/ikarus.boot.prebuilt differ
diff --git a/scheme/ikarus.reader.ss b/scheme/ikarus.reader.ss
index ba09c0e..cefaf8f 100644
--- a/scheme/ikarus.reader.ss
+++ b/scheme/ikarus.reader.ss
@@ -27,7 +27,7 @@
   (define delimiter?
     (lambda (c)
       (or (char-whitespace? c)
-          (memq c '(#\( #\) #\[ #\] #\{ #\} #\' #\` #\, #\")))))
+          (memq c '(#\( #\) #\[ #\] #\" #\# #\;)))))
   (define digit?
     (lambda (c)
       (and ($char<= #\0 c) ($char<= c #\9))))
diff --git a/scheme/last-revision b/scheme/last-revision
index 31ba99e..ba3343d 100644
--- a/scheme/last-revision
+++ b/scheme/last-revision
@@ -1 +1 @@
-1157
+1158