diff --git a/js2/semantics/HTML.lisp b/js2/semantics/HTML.lisp
index f04d329cde0d..2c7d4723bc7c 100644
--- a/js2/semantics/HTML.lisp
+++ b/js2/semantics/HTML.lisp
@@ -396,6 +396,7 @@
   '(((:new-line t) (br))
     
     ;Misc.
+    ((:nbsp 1) nbsp)
     (:tab2 nbsp nbsp)
     (:tab3 nbsp nbsp nbsp)
     (:nbhy "-")             ;Non-breaking hyphen
@@ -516,8 +517,8 @@
     ((:but-not 6) (b "except"))
     ((:begin-negative-lookahead 13) "[lookahead" :not-member-10 "{")
     ((:end-negative-lookahead 2) "}]")
-    ((:line-break 12) "[line" nbsp "break]")
-    ((:no-line-break 15) "[no" nbsp "line" nbsp "break]")
+    ((:line-break 12) "[line" :nbsp "break]")
+    ((:no-line-break 15) "[no" :nbsp "line" :nbsp "break]")
     (:subscript sub)
     (:superscript sup)
     ((:action-begin 1) "[")
diff --git a/js2/semantics/RTF.lisp b/js2/semantics/RTF.lisp
index cd3ab739bf0b..b6aa545267d3 100644
--- a/js2/semantics/RTF.lisp
+++ b/js2/semantics/RTF.lisp
@@ -97,6 +97,7 @@
     
     ;Misc.
     (:space " ")
+    (:nbsp ~)
     (:tab2 tab)
     (:tab3 tab)
     (:nbhy _)             ;Non-breaking hyphen
@@ -465,8 +466,8 @@
     ((:but-not 6) (b "except"))
     ((:begin-negative-lookahead 13) "[lookahead" :not-member-10 "{")
     ((:end-negative-lookahead 2) "}]")
-    ((:line-break 12) "[line" ~ "break]")
-    ((:no-line-break 15) "[no" ~ "line" ~ "break]")
+    ((:line-break 12) "[line" :nbsp "break]")
+    ((:no-line-break 15) "[no" :nbsp "line" :nbsp "break]")
     (:subscript sub)
     (:superscript super)
     ((:action-begin 1) "[")