diff --git a/PWGMM/Mult/TableProducer/percentiles.cxx b/PWGMM/Mult/TableProducer/percentiles.cxx
index d34802ab2ae..bba44ad0243 100644
--- a/PWGMM/Mult/TableProducer/percentiles.cxx
+++ b/PWGMM/Mult/TableProducer/percentiles.cxx
@@ -32,6 +32,7 @@
 
 #include <cstdint>
 #include <cstdlib>
+#include <string>
 
 using namespace o2;
 using namespace o2::framework;
diff --git a/PWGMM/Mult/Tasks/dndeta.cxx b/PWGMM/Mult/Tasks/dndeta.cxx
index ae99e5f8205..6f69f60e42c 100644
--- a/PWGMM/Mult/Tasks/dndeta.cxx
+++ b/PWGMM/Mult/Tasks/dndeta.cxx
@@ -42,6 +42,7 @@
 
 #include <algorithm>
 #include <cstdint>
+#include <string>
 #include <vector>
 
 using namespace o2;
diff --git a/PWGMM/Mult/Tasks/puremc-dndeta.cxx b/PWGMM/Mult/Tasks/puremc-dndeta.cxx
index f634755a3dd..1891459aa4f 100644
--- a/PWGMM/Mult/Tasks/puremc-dndeta.cxx
+++ b/PWGMM/Mult/Tasks/puremc-dndeta.cxx
@@ -31,6 +31,7 @@
 #include <cstdlib>
 #include <iterator>
 #include <memory>
+#include <string>
 #include <vector>
 
 using namespace o2;