diff --git a/PWGEM/Dilepton/Core/Dilepton.h b/PWGEM/Dilepton/Core/Dilepton.h
index 05fc8699687..b5ba7dad68e 100644
--- a/PWGEM/Dilepton/Core/Dilepton.h
+++ b/PWGEM/Dilepton/Core/Dilepton.h
@@ -64,8 +64,8 @@
 #include <TH1.h>
 #include <TH2.h>
 #include <TList.h>
-#include <TString.h>
 #include <TRandom3.h>
+#include <TString.h>
 
 #include <sys/types.h>