diff --git a/src/database.cpp b/src/database.cpp
index 8cf77a1..318ba15 100644
--- a/src/database.cpp
+++ b/src/database.cpp
@@ -21,6 +21,7 @@
 #include <sqlite3.h>
 #include <string.h>
 #include <math.h>
+#include <cstdint>
 
 struct StdevCtx {
     double mean;