diff --git a/src/util b/src/util
index 333eb38..a357190 100644
--- a/src/util
+++ b/src/util
@@ -42,7 +42,7 @@ aok()
   local -i i="${#arr[@]}"
 
   while ((i--)); do
-    test "${arr[i]}" -eq 0 || return 1
-  done
+    test "${arr[i]}" -eq 0 || return
+  done &>/dev/null
 }
 
diff --git a/test/test-util b/test/test-util
index 0862915..60783ef 100644
--- a/test/test-util
+++ b/test/test-util
@@ -23,38 +23,48 @@ describe aok
   it succeeds for all zero values
     expect aok 0
       to succeed
+      and to be silent
 
     expect aok 0 0 0
       to succeed
+      and to be silent
   end
 
   it fails for any zero values
     expect aok 1
       to fail
+      and to be silent
 
     expect aok 1 0 0
       to fail
+      and to be silent
 
     expect aok 0 1 0
       to fail
+      and to be silent
 
     expect aok 0 0 1
       to fail
+      and to be silent
 
     expect aok 1 1 1
       to fail
+      and to be silent
   end
 
   # this surely implies a bug in the user's code
   it fails for any non-numeric values
     expect aok foo
       to fail
+      and to be silent
 
     expect aok 0 foo
       to fail
+      and to be silent
 
     expect aok foo 0
       to fail
+      and to be silent
   end
 end