diff --git a/PortabilityLayer/QDPort.cpp b/PortabilityLayer/QDPort.cpp
index e18463d..1172fcb 100644
--- a/PortabilityLayer/QDPort.cpp
+++ b/PortabilityLayer/QDPort.cpp
@@ -6,6 +6,8 @@
 
 namespace PortabilityLayer
 {
+	static uint32_t gs_nextQDPortDebugID = 0;
+
 	QDPort::QDPort(QDPortType portType)
 		: m_portType(portType)
 		, m_left(0)
@@ -15,6 +17,7 @@ namespace PortabilityLayer
 		, m_pixMap(nullptr)
 		, m_pixelFormat(GpPixelFormats::kInvalid)
 		, m_dirtyFlags(0)
+		, m_debugID(gs_nextQDPortDebugID++)
 	{
 	}
 
diff --git a/PortabilityLayer/QDPort.h b/PortabilityLayer/QDPort.h
index f39c137..222e322 100644
--- a/PortabilityLayer/QDPort.h
+++ b/PortabilityLayer/QDPort.h
@@ -58,6 +58,8 @@ namespace PortabilityLayer
 		uint16_t m_height;
 		uint32_t m_dirtyFlags;
 		GpPixelFormat_t m_pixelFormat;
+
+		uint32_t m_debugID;
 	};
 
 	inline QDPortType QDPort::GetPortType() const