diff --git a/contrib/backends/nntpchan-daemon/libnntpchan/event.cpp b/contrib/backends/nntpchan-daemon/libnntpchan/event.cpp
index a5d682c..f774847 100644
--- a/contrib/backends/nntpchan-daemon/libnntpchan/event.cpp
+++ b/contrib/backends/nntpchan-daemon/libnntpchan/event.cpp
@@ -1,5 +1,5 @@
 #include <fcntl.h>
-#include <cstdint>
+#include <cstdlib>
 
 constexpr std::size_t ev_buffsz = 512;