diff --git a/compress.cpp b/compress.cpp
index b376284f..09829c31 100644
--- a/compress.cpp
+++ b/compress.cpp
@@ -24,6 +24,7 @@
 #include <cstdlib>
 #include <cstring>
 #include <sstream>
+#include <stdio.h>
 
 #include "compress.h"