diff --git a/src/fix_propel_self.h b/src/fix_propel_self.h
deleted file mode 100644
index 47d1e1255b..0000000000
--- a/src/fix_propel_self.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/* -*- c++ -*- ----------------------------------------------------------
-   LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
-   http://lammps.sandia.gov, Sandia National Laboratories
-   Steve Plimpton, sjplimp@sandia.gov
-
-   Copyright (2003) Sandia Corporation.  Under the terms of Contract
-   DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
-   certain rights in this software.  This software is distributed under
-   the GNU General Public License.
-
-   See the README file in the top-level LAMMPS directory.
-------------------------------------------------------------------------- */
-
-#ifdef FIX_CLASS
-
-FixStyle(propel/self,FixPropelSelf)
-
-#else
-
-#ifndef LMP_FIX_PROPEL_SELF_H
-#define LMP_FIX_PROPEL_SELF_H
-
-#include "fix.h"
-
-namespace LAMMPS_NS {
-
-class FixPropelSelf : public Fix {
- public:
-
-  FixPropelSelf(class LAMMPS *, int, char **);
-  virtual ~FixPropelSelf();
-  virtual int setmask();
-  virtual void post_force(int);
-
-  double memory_usage();
-
- protected:
-  enum operation_modes {
-    VELOCITY = 0,
-    QUATERNION = 1
-  };
-
-private:
-  double magnitude;
-  int mode;
-
-  // If 0, apply fix to everything in group. If > 0, apply only to those
-  // types i for which i <= n_types_filter _and_ apply_to_type[i] == 1:
-  int n_types_filter;
-  int *apply_to_type; //< Specifies, per type, if the fix applies to it or not.
-
-
-  int atoms_have_quaternion();
-
-  template <int filter_by_type> void post_force_velocity(int);
-  template <int filter_by_type> void post_force_quaternion(int);
-};
-}
-
-#endif
-#endif
-
-/* ERROR/WARNING messages:
-
-E: Illegal ... command
-
-Self-explanatory.  Check the input script syntax and compare to the
-documentation for the command.  You can use -echo screen as a
-command-line option when running LAMMPS to see the offending line.
-
-*/