diff --git a/src/Nibbler.h b/src/Nibbler.h
index d48e6e5b6..daf36542d 100644
--- a/src/Nibbler.h
+++ b/src/Nibbler.h
@@ -35,6 +35,7 @@
 
 #include <string>
 #include <vector>
+#include <time.h>
 
 class Nibbler
 {