diff --git a/collects/tests/mzscheme/benchmarks/rx/auto.ss b/collects/tests/mzscheme/benchmarks/rx/auto.ss
index 1919e25472..adee7ae54b 100755
--- a/collects/tests/mzscheme/benchmarks/rx/auto.ss
+++ b/collects/tests/mzscheme/benchmarks/rx/auto.ss
@@ -158,7 +158,7 @@ exec mzscheme -qu "$0" ${1+"$@"}
       (list 'backref #"cataract cataract23" #"(?i:(cat(?:a(?:ract|tonic)|erpillar))) \\1(?:)23" 100000 '(mzold))
       (list 'digits #"From abcd  Mon Sep  1 12:33:02 1997" #"^From\\s+\\S+\\s+([a-zA-Z]{3}\\s+){2}\\d{1,2}\\s+\\d\\d:\\d\\d" 100000 '(mzold))
       (list 'digits #"From abcd  Sep 01 12:33:02 1997" #"^From\\s+\\S+\\s+([a-zA-Z]{3}\\s+){2}\\d{1,2}\\s+\\d\\d:\\d\\d"  100000 '(mzold))
-      (list 'lines (bytes-append (make-bytes 100 (char->integer #\x)) #"\na\nb\nc\nxxxxxxxx") #"(?m:^a(?:$)[^a]^b(?:$)[^a]^c(?:$))" 10000 '(mzold))
+      (list 'lines (bytes-append (make-bytes 100 (char->integer #\x)) #"\na\nb\nc\nxxxxxxxx") #"(?m:^a(?:$)[^a]^b(?:$)[^a]^c(?:$))" 100000 '(mzold))
       (list 'lookahead #"foobar is foolish see?" #"foo(?!bar).*" 100000 '(mzold))
       (list 'lookahead #"foobar crowbar etc" #"(?:(?!foo)...|^.{0,2})bar.*" 100000 '(mzold))
       (list 'lookbehind #"foobar is foolish see?" #"(?<=foo)lish.*" 100000 '(mzold))
diff --git a/collects/tests/mzscheme/benchmarks/shootout/regexpdna.ss b/collects/tests/mzscheme/benchmarks/shootout/regexpdna.ss
index 6196e63aaf..11e9817f7a 100644
--- a/collects/tests/mzscheme/benchmarks/shootout/regexpdna.ss
+++ b/collects/tests/mzscheme/benchmarks/shootout/regexpdna.ss
@@ -29,7 +29,7 @@
       (#"W" #"(a|t)") (#"Y" #"(c|t)")))
 
   ;; -------------------------------
-  
+
   (define (ci-byte-regexp s)
     (byte-regexp (ci-pattern s)))
   (define (ci-pattern s)