diff --git a/.gitignore b/.gitignore
index 78db2fa75f..00d422692d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,7 +22,6 @@
 # Files generated by the tests
 /src/nvim/testdir/del
 /src/nvim/testdir/mbyte.vim
-/src/nvim/testdir/mzscheme.vim
 /src/nvim/testdir/lua.vim
 /src/nvim/testdir/small.vim
 /src/nvim/testdir/tiny.vim
diff --git a/src/nvim/testdir/Makefile b/src/nvim/testdir/Makefile
index be76206bfc..aff22f33dd 100644
--- a/src/nvim/testdir/Makefile
+++ b/src/nvim/testdir/Makefile
@@ -22,7 +22,7 @@ SCRIPTS := test_autoformat_join.out                                    \
                        test52.out  test53.out              test55.out  \
                        test57.out  test58.out  test59.out  test60.out  \
            test61.out  test62.out  test63.out  test64.out  test65.out  \
-                                   test68.out  test69.out  test70.out  \
+                                   test68.out  test69.out              \
            test71.out              test73.out  test74.out              \
            test76.out              test78.out  test79.out  test80.out  \
                        test82.out  test83.out              test85.out  \
@@ -85,7 +85,7 @@ test1.out: $(VIMPROG)
 $(SCRIPTS) $(SCRIPTS_GUI): $(VIMPROG) test1.out
 
 RM_ON_RUN   := test.out X* viminfo
-RM_ON_START := tiny.vim small.vim mbyte.vim mzscheme.vim lua.vim test.ok
+RM_ON_START := tiny.vim small.vim mbyte.vim lua.vim test.ok
 RUN_VIM     := VIMRUNTIME=$(SCRIPTSOURCE); export VIMRUNTIME; $(TOOL) $(VIMPROG) -u unix.vim -U NONE -i viminfo --noplugin -s dotest.in
 
 clean:
diff --git a/src/nvim/testdir/test1.in b/src/nvim/testdir/test1.in
index 735d539673..4875c9173d 100644
--- a/src/nvim/testdir/test1.in
+++ b/src/nvim/testdir/test1.in
@@ -14,7 +14,6 @@ set like small.vim above.  tiny.vim is sourced by tests that require the
 If Vim was not compiled with the +multi_byte feature, the mbyte.vim script will
 be set like small.vim above.  mbyte.vim is sourced by tests that require the
 +multi_byte feature.
-Similar logic is applied to the +mzscheme feature, using mzscheme.vim.
 Similar logic is applied to the +lua feature, using lua.vim.
 
 STARTTEST
@@ -32,15 +31,11 @@ ae! test.ok
 w! test.out
 qa!
 :w! mbyte.vim
-:w! mzscheme.vim
 :w! lua.vim
 :"
 :" If +multi_byte feature supported, make mbyte.vim empty.
 :if has("multi_byte") | sp another | w! mbyte.vim | q | endif
 :"
-:" If +mzscheme feature supported, make mzscheme.vim empty.
-:if has("mzscheme") | sp another | w! mzscheme.vim | q | endif
-:"
 :" If +lua feature supported, make lua.vim empty.
 :if has("lua") | sp another | w! lua.vim | q | endif
 :"
diff --git a/src/nvim/testdir/test70.in b/src/nvim/testdir/test70.in
deleted file mode 100644
index 24d2e4c446..0000000000
--- a/src/nvim/testdir/test70.in
+++ /dev/null
@@ -1,62 +0,0 @@
-Smoke test for MzScheme interface and mzeval() function
-
-STARTTEST
-:so mzscheme.vim
-:function! MzRequire()
-:redir => l:mzversion
-:mz (version)
-:redir END
-:if strpart(l:mzversion, 1, 1) < "4"
-:" MzScheme versions < 4.x:
-:mz (require (prefix vim- vimext))
-:else
-:" newer versions:
-:mz (require (prefix-in vim- 'vimext))
-:mz (require r5rs)
-:endif
-:endfunction
-:silent call MzRequire()
-:mz (define l '("item0" "dictionary with list OK" "item2"))
-:mz (define h (make-hash))
-:mz (hash-set! h "list" l)
-/^1
-:" change buffer contents
-:mz (vim-set-buff-line (vim-eval "line('.')") "1 changed line 1")
-:" scalar test
-:let tmp_string = mzeval('"string"')
-:let tmp_1000 = mzeval('1000')
-:if tmp_string . tmp_1000 == "string1000"
-:let scalar_res = "OK"
-:else
-:let scalar_res = "FAILED"
-:endif
-:call append(search("^1"), "scalar test " . scalar_res)
-:" dictionary containing a list
-:let tmp = mzeval("h")["list"][1]
-:/^2/put =tmp
-:" circular list (at the same time test lists containing lists)
-:mz (set-car! (cddr l) l)
-:let l2 = mzeval("h")["list"]
-:if l2[2] == l2
-:let res = "OK"
-:else
-:let res = "FAILED: " . l2[2]
-:endif
-:call setline(search("^3"), "circular test " . res)
-:" funcrefs
-:mz (define vim:max (vim-eval "function('max')"))
-:mz (define m (vim:max '(1 100 8)))
-:let m = mzeval('m')
-:if m == 100
-:let fref_res = "OK"
-:else
-:let fref_res = "FAILED: " . m
-:end
-:call append(line('$'), 'funcrefs '. fref_res)
-:?^1?,$w! test.out
-:qa!
-ENDTEST
-
-1 line 1
-2 line 2
-3 line 3
diff --git a/src/nvim/testdir/test70.ok b/src/nvim/testdir/test70.ok
deleted file mode 100644
index 9c82a86f2d..0000000000
--- a/src/nvim/testdir/test70.ok
+++ /dev/null
@@ -1,6 +0,0 @@
-1 changed line 1
-scalar test OK
-2 line 2
-dictionary with list OK
-circular test OK
-funcrefs OK