diff --git a/lib/microReticulum/src/Utilities/Persistence.h b/lib/microReticulum/src/Utilities/Persistence.h
index 82f4f68..d0fdda1 100755
--- a/lib/microReticulum/src/Utilities/Persistence.h
+++ b/lib/microReticulum/src/Utilities/Persistence.h
@@ -13,6 +13,7 @@
 #include <deque>
 #include <set>
 #include <string>
+#include <algorithm>
 
 namespace ArduinoJson {