diff --git a/PWGUD/TableProducer/upcCandProducerBarrel.cxx b/PWGUD/TableProducer/upcCandProducerBarrel.cxx
index a72220b7c30..c6c439a0c14 100644
--- a/PWGUD/TableProducer/upcCandProducerBarrel.cxx
+++ b/PWGUD/TableProducer/upcCandProducerBarrel.cxx
@@ -48,12 +48,12 @@
 #include <cmath>
 #include <cstddef>
 #include <cstdint>
+#include <map>
 #include <memory>
 #include <unordered_map>
 #include <unordered_set>
 #include <utility>
 #include <vector>
-#include <map>
 
 using namespace o2;
 using namespace o2::framework;