diff --git a/src/delete_bonds.cpp b/src/delete_bonds.cpp
index 6ed4d211d1..c4823cc01b 100644
--- a/src/delete_bonds.cpp
+++ b/src/delete_bonds.cpp
@@ -25,8 +25,6 @@
 #include "special.h"
 #include "error.h"
 
-#include <stdlib.h>
-
 using namespace LAMMPS_NS;
 
 enum{MULTI,ATOM,BOND,ANGLE,DIHEDRAL,IMPROPER,STATS};