diff --git a/gegelatilib/src/util/timestamp.cpp b/gegelatilib/src/util/timestamp.cpp
index 8bdfbd61..b8a8ff2a 100644
--- a/gegelatilib/src/util/timestamp.cpp
+++ b/gegelatilib/src/util/timestamp.cpp
@@ -34,6 +34,7 @@
  */
 
 #include <chrono>
+#include <ctime>
 
 #include "util/timestamp.h"