diff --git a/src/input.cpp b/src/input.cpp
index dda64856dc..4ab4a6b968 100644
--- a/src/input.cpp
+++ b/src/input.cpp
@@ -594,7 +594,7 @@ void Input::substitute(char *&str, char *&str2, int &max, int &max2, int flag)
 
 int Input::expand_args(int narg, char **arg, int mode, char **&earg)
 {
-  int n,iarg,index,nlo,nhi,nmax,which,expandflag,icompute,ifix;
+  int n,iarg,index,nlo,nhi,nmax,expandflag,icompute,ifix;
   char *ptr1,*ptr2,*str;
 
   ptr1 = NULL;