diff --git a/src/params.cxx b/src/params.cxx
index fcf521f..4d0de69 100644
--- a/src/params.cxx
+++ b/src/params.cxx
@@ -21,6 +21,7 @@
 #include <list>
 #include <math.h>
 #include <string>
+#include <cstdint>
 #include <tclap/CmdLine.h>
 
 #include "params.h"