diff --git a/src/fix_langevin.cpp b/src/fix_langevin.cpp
index 3ceb27d759..47699bfac7 100644
--- a/src/fix_langevin.cpp
+++ b/src/fix_langevin.cpp
@@ -72,7 +72,7 @@ FixLangevin::FixLangevin(LAMMPS *lmp, int narg, char **arg) :
 
   for (int i = 1; i <= atom->ntypes; i++) ratio[i] = 1.0;
   tally = 0;
-  zeroflag = 1;
+  zeroflag = 0;
 
   int iarg = 7;
   while (iarg < narg) {