diff --git a/synthetizer.cpp b/synthetizer.cpp
index 0215f8e..37279da 100644
--- a/synthetizer.cpp
+++ b/synthetizer.cpp
@@ -4,6 +4,8 @@
 #include <cmath>
 #include <vector>
 #include <sstream>
+#include <cstdint>
+#include <cstring>
 #include <string>
 
 const int SAMPLE_RATE = 44100;