diff --git a/demo/wavedemo1.cpp b/demo/wavedemo1.cpp
index 39c14f8..0116f55 100644
--- a/demo/wavedemo1.cpp
+++ b/demo/wavedemo1.cpp
@@ -8,7 +8,7 @@
 
 #include <iostream>
 #include <fstream>
-#include "wave1d.h"
+#include "wavelet.h"
 #include <vector>
 #include <string>
 #include <cmath>