diff --git a/collects/tests/racket/benchmarks/common/README.txt b/collects/tests/racket/benchmarks/common/README.txt
index b9e027ca97..b3773b6307 100644
--- a/collects/tests/racket/benchmarks/common/README.txt
+++ b/collects/tests/racket/benchmarks/common/README.txt
@@ -9,7 +9,7 @@ where <impl-or-benchmark> names an implementation as one of
    ...
 or a benchmark as one of
    conform
-   cpstack
+   cpstak
    ctak
    ...
 or any of the above prefixed by "no-" to skip the corresponding
diff --git a/collects/tests/racket/benchmarks/common/auto.rkt b/collects/tests/racket/benchmarks/common/auto.rkt
index 9b433b3b60..76cc87e514 100755
--- a/collects/tests/racket/benchmarks/common/auto.rkt
+++ b/collects/tests/racket/benchmarks/common/auto.rkt
@@ -449,7 +449,7 @@ exec racket -qu "$0" ${1+"$@"}
                 run-exe
                 extract-bigloo-times
                 clean-up-bin
-                (append '(cpstack nucleic2 takr2)
+                (append '(cpstak nucleic2 takr2)
                         racket-specific-progs))
      (make-impl 'gambit
                 void
@@ -509,7 +509,7 @@ exec racket -qu "$0" ${1+"$@"}
 
   (define benchmarks
     '(conform
-      cpstack
+      cpstak
       ctak
       deriv
       dderiv
diff --git a/collects/tests/racket/benchmarks/common/cpstack.rkt b/collects/tests/racket/benchmarks/common/cpstack.rkt
deleted file mode 100644
index c39bfd7276..0000000000
--- a/collects/tests/racket/benchmarks/common/cpstack.rkt
+++ /dev/null
@@ -1,2 +0,0 @@
-
-(module cpstack "wrap.ss")
diff --git a/collects/tests/racket/benchmarks/common/cpstak.rkt b/collects/tests/racket/benchmarks/common/cpstak.rkt
new file mode 100644
index 0000000000..8ca30fcf96
--- /dev/null
+++ b/collects/tests/racket/benchmarks/common/cpstak.rkt
@@ -0,0 +1,2 @@
+
+(module cpstak "wrap.ss")
diff --git a/collects/tests/racket/benchmarks/common/cpstack.sch b/collects/tests/racket/benchmarks/common/cpstak.sch
similarity index 100%
rename from collects/tests/racket/benchmarks/common/cpstack.sch
rename to collects/tests/racket/benchmarks/common/cpstak.sch
diff --git a/collects/tests/racket/benchmarks/common/typed/cpstack-non-optimizing.rkt b/collects/tests/racket/benchmarks/common/typed/cpstak-non-optimizing.rkt
similarity index 100%
rename from collects/tests/racket/benchmarks/common/typed/cpstack-non-optimizing.rkt
rename to collects/tests/racket/benchmarks/common/typed/cpstak-non-optimizing.rkt
diff --git a/collects/tests/racket/benchmarks/common/typed/cpstack-optimizing.rkt b/collects/tests/racket/benchmarks/common/typed/cpstak-optimizing.rkt
similarity index 100%
rename from collects/tests/racket/benchmarks/common/typed/cpstack-optimizing.rkt
rename to collects/tests/racket/benchmarks/common/typed/cpstak-optimizing.rkt
diff --git a/collects/tests/racket/benchmarks/common/typed/cpstack.rktl b/collects/tests/racket/benchmarks/common/typed/cpstak.rktl
similarity index 100%
rename from collects/tests/racket/benchmarks/common/typed/cpstack.rktl
rename to collects/tests/racket/benchmarks/common/typed/cpstak.rktl