diff --git a/Core/MemMap.h b/Core/MemMap.h
index 0e8863b090..b123af4f3a 100644
--- a/Core/MemMap.h
+++ b/Core/MemMap.h
@@ -467,6 +467,11 @@ struct PSPPointer
 		PSPPointerNotifyRW(2, (uint32_t)ptr, (uint32_t)sizeof(T), tag, tagLen - 1);
 	}
 
+	size_t ElementSize() const
+	{
+		return sizeof(T);
+	}
+
 	static PSPPointer<T> Create(u32 ptr) {
 		PSPPointer<T> p;
 		p = ptr;
diff --git a/Core/Util/PPGeDraw.cpp b/Core/Util/PPGeDraw.cpp
index 2b83bb4ccd..13fd62a22f 100644
--- a/Core/Util/PPGeDraw.cpp
+++ b/Core/Util/PPGeDraw.cpp
@@ -182,13 +182,13 @@ static void Vertex(float x, float y, float u, float v, int tw, int th, u32 color
 		vtx->x = x; vtx->y = y; vtx->z = 0;
 		vtx->u = u * tw; vtx->v = v * th;
 		vtx->color = color;
-		dataWritePtr += sizeof(vtx);
+		dataWritePtr += (u32)vtx.ElementSize();
 	} else {
 		auto vtx = PSPPointer<PPGeVertex>::Create(dataWritePtr);
 		vtx->x = x; vtx->y = y; vtx->z = 0;
 		vtx->u = u * tw; vtx->v = v * th;
 		vtx->color = color;
-		dataWritePtr += sizeof(vtx);
+		dataWritePtr += (u32)vtx.ElementSize();
 	}
 	_dbg_assert_(dataWritePtr <= dataPtr + dataSize);
 	vertexCount++;