diff --git a/Changelog.md b/Changelog.md
index 9663475c..7b56eaac 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -12,6 +12,7 @@ _yyyy.mm.dd_
   * TPG Execution (in gegelati and in generated code): When executing outgoing edges of a team, providing a mechanism to exclude already visited edges is not needed.
 
 ### Bug fix
+* Fix build issue with MSVC19. `#include <ctime>` needed in timestamp.cpp.
 
 
 ## Release version 1.2.0 - Cantutuccini flavor
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"