diff --git a/src/testdir/test_cmdline.vim b/src/testdir/test_cmdline.vim
index a05d010..90afe45 100644
--- a/src/testdir/test_cmdline.vim
+++ b/src/testdir/test_cmdline.vim
@@ -810,6 +810,16 @@
   call feedkeys(":legac call strle\<C-A>\<C-B>\"\<CR>", 'xt')
   call assert_equal("\"legac call strlen(", @:)
 
+  " completion for the :disassemble command
+  call feedkeys(":disas deb\<C-A>\<C-B>\"\<CR>", 'xt')
+  call assert_equal("\"disas debug", @:)
+  call feedkeys(":disas pro\<C-A>\<C-B>\"\<CR>", 'xt')
+  call assert_equal("\"disas profile", @:)
+  call feedkeys(":disas debug Test_cmdline_complete_var\<C-A>\<C-B>\"\<CR>", 'xt')
+  call assert_equal("\"disas debug Test_cmdline_complete_various", @:)
+  call feedkeys(":disas profile Test_cmdline_complete_var\<C-A>\<C-B>\"\<CR>", 'xt')
+  call assert_equal("\"disas profile Test_cmdline_complete_various", @:)
+
   " completion for the :match command
   call feedkeys(":match Search /pat/\<C-A>\<C-B>\"\<CR>", 'xt')
   call assert_equal("\"match Search /pat/\<C-A>", @:)