diff --git a/sensors/buildjson.cpp b/sensors/buildjson.cpp
index b8120a8..c5ef849 100644
--- a/sensors/buildjson.cpp
+++ b/sensors/buildjson.cpp
@@ -22,6 +22,7 @@
 #include <nlohmann/json.hpp>
 
 #include <cstdio>
+#include <map>
 
 using json = nlohmann::json;