diff --git a/guile/step5_tco.scm b/guile/step5_tco.scm
index 909aa8b5..67a29638 100644
--- a/guile/step5_tco.scm
+++ b/guile/step5_tco.scm
@@ -130,9 +130,4 @@
 
 (EVAL-string "(def! not (fn* (x) (if x false true)))")
 
-;; NOTE: we have to reduce stack size to pass step5 test
-((@ (system vm vm) call-with-stack-overflow-handler)
- 1024
- (lambda () (REPL))
- (lambda k (throw 'mal-error "stack overflow")))
-
+(REPL)
diff --git a/guile/tests/step5_tco.mal b/guile/tests/step5_tco.mal
deleted file mode 100644
index d20df25d..00000000
--- a/guile/tests/step5_tco.mal
+++ /dev/null
@@ -1,15 +0,0 @@
-;; Test recursive non-tail call function
-
-(def! sum-to (fn* (n) (if (= n 0) 0 (+ n (sum-to (- n 1))))))
-
-(sum-to 10)
-;=>55
-
-;;; no try* yet, so test completion of side-effects
-(def! res1 nil)
-;=>nil
-;;; For implementations without their own TCO this should fail and
-;;; leave res1 unchanged
-(def! res1 (sum-to 10000))
-res1
-;=>nil