diff --git a/MshViewer/Source/OpenGlController.cpp b/MshViewer/Source/OpenGlController.cpp
index 95185f7..316cb2c 100644
--- a/MshViewer/Source/OpenGlController.cpp
+++ b/MshViewer/Source/OpenGlController.cpp
@@ -348,7 +348,7 @@ void OpenGLController::loadMsh(const char * path)
 	glBindBuffer(GL_ARRAY_BUFFER, gluiVertexBufferID);
 	glBufferData(
 		GL_ARRAY_BUFFER,
-		sizeof(tempBufferData) * tempBufferData.size(),
+		sizeof(Vertex) * tempBufferData.size(),
 		tempBufferData.data(),
 		GL_STATIC_DRAW
 	);