diff --git a/Source/Core/VideoCommon/VertexManagerBase.cpp b/Source/Core/VideoCommon/VertexManagerBase.cpp
index 919cb0b17e..d637ad9017 100644
--- a/Source/Core/VideoCommon/VertexManagerBase.cpp
+++ b/Source/Core/VideoCommon/VertexManagerBase.cpp
@@ -232,6 +232,9 @@ void VertexManager::Flush()
 
 	GFX_DEBUGGER_PAUSE_AT(NEXT_FLUSH, true);
 
+	if (xfmem.numTexGen.numTexGens != bpmem.genMode.numtexgens)
+		ERROR_LOG(VIDEO, "xf.numtexgens (%d) does not match bp.numtexgens (%d). Error in command stream.", xfmem.numTexGen.numTexGens, bpmem.genMode.numtexgens.Value());
+
 	IsFlushed = true;
 }