diff --git a/src/USER-MISC/fix_propel_self.cpp b/src/USER-MISC/fix_propel_self.cpp
index 9abd1cb791..a2d1c4166c 100644
--- a/src/USER-MISC/fix_propel_self.cpp
+++ b/src/USER-MISC/fix_propel_self.cpp
@@ -263,6 +263,6 @@ int FixPropelSelf::atoms_have_quaternion()
 
   MPI_Allreduce(&flag,&flagall,1,MPI_INT,MPI_SUM,world);
   if (flagall > 0) return 0;
-  
+
   return 1;
 }