diff --git a/test/lib/library.exp b/test/lib/library.exp
index f6e9f21a..816c038f 100644
--- a/test/lib/library.exp
+++ b/test/lib/library.exp
@@ -368,7 +368,7 @@ proc assert_complete_any {cmd {test ""} {prompt /@}} {
 proc assert_complete_dir {expected cmd dir {test ""} {args {}}} {
     set prompt "/@"
     assert_bash_exec "cd $dir" "" $prompt
-    assert_complete $expected $cmd $test $args
+    eval assert_complete \$expected \$cmd \$test $args
     sync_after_int $prompt
     assert_bash_exec {cd "$TESTDIR"}
 }