diff --git a/src/util/com/com_private_data.cpp b/src/util/com/com_private_data.cpp
index b06ade02c..e4d34db3c 100644
--- a/src/util/com/com_private_data.cpp
+++ b/src/util/com/com_private_data.cpp
@@ -23,7 +23,8 @@ namespace dxvk {
     const IUnknown* iface)
   : m_guid  (guid),
     m_iface (const_cast<IUnknown*>(iface)) {
-    m_iface->AddRef();
+    if (m_iface != nullptr)
+      m_iface->AddRef();
   }