diff --git a/dlls/msi/tests/install.c b/dlls/msi/tests/install.c
index 40fabf8e001..e335cfad8a1 100644
--- a/dlls/msi/tests/install.c
+++ b/dlls/msi/tests/install.c
@@ -1776,6 +1776,8 @@ static void test_packagecoltypes(void)
     MsiCloseHandle(rec);
     MsiCloseHandle(view);
     MsiCloseHandle(hdb);
+    CoUninitialize();
+
     DeleteFile(msifile);
 }