diff --git a/tests/test-leaks.lua b/tests/test-leaks.lua
index d12d652e9..77ea7b649 100644
--- a/tests/test-leaks.lua
+++ b/tests/test-leaks.lua
@@ -29,6 +29,7 @@ local function collectable(a, b, c, d, e, f, g, h, last)
     end
     collectgarbage("collect")
     collectgarbage("collect")
+    collectgarbage("collect")
     -- Check if the table is now empty
     for _, v in pairs(objs) do
         print("Some object was not garbage collected!")