diff --git a/src/utils/lineFileUtilities/lineFileUtilities.h b/src/utils/lineFileUtilities/lineFileUtilities.h
index 688bf09b6ef87e8616a53e2fd193d270dd6271aa..1d917d604b5f68bcefcd2e13ab964bffabdfb372 100644
--- a/src/utils/lineFileUtilities/lineFileUtilities.h
+++ b/src/utils/lineFileUtilities/lineFileUtilities.h
@@ -4,6 +4,7 @@
 #include <vector>
 #include <string>
 #include <cstring>
+#include <cstdlib>
 #include <sstream>
 
 using namespace std;