diff --git a/pandatool/src/bam/eggToBam.cxx b/pandatool/src/bam/eggToBam.cxx
index 4f7bc535fa..e41dd6c38f 100644
--- a/pandatool/src/bam/eggToBam.cxx
+++ b/pandatool/src/bam/eggToBam.cxx
@@ -25,6 +25,10 @@ EggToBam() :
     ("This program reads Egg files and outputs Bam files, the binary format "
      "suitable for direct loading of animation and models into Panda.");
 
+  // -f is always in effect for egg2bam.  It doesn't make sense to
+  // provide it as an option to the user.
+  remove_option("f");
+
   add_option
     ("tp", "path", 0, 
      "Add the indicated colon-delimited paths to the texture-path.  This "
diff --git a/pandatool/src/cvscopy/cvsCopy.cxx b/pandatool/src/cvscopy/cvsCopy.cxx
index 40f6b938d1..9d97c6755d 100644
--- a/pandatool/src/cvscopy/cvsCopy.cxx
+++ b/pandatool/src/cvscopy/cvsCopy.cxx
@@ -333,7 +333,7 @@ cvs_add(const Filename &filename) {
     return false;
   }
 
-  string command = _cvs_binary + " add " + filename.get_basename();
+  string command = _cvs_binary + " add -kb " + filename.get_basename();
   nout << command << "\n";
   int result = system(command.c_str());
 
diff --git a/pandatool/src/softprogs/softCVS.cxx b/pandatool/src/softprogs/softCVS.cxx
index 697d337ce2..5a901bf282 100644
--- a/pandatool/src/softprogs/softCVS.cxx
+++ b/pandatool/src/softprogs/softCVS.cxx
@@ -480,7 +480,7 @@ scan_scene_file(istream &in) {
 ////////////////////////////////////////////////////////////////////
 bool SoftCVS::
 cvs_add(const string &path) {
-  string command = _cvs_binary + " add " + path;
+  string command = _cvs_binary + " add -kb " + path;
   nout << command << "\n";
   int result = system(command.c_str());