diff --git a/pandatool/src/eggprogs/eggTextureCards.cxx b/pandatool/src/eggprogs/eggTextureCards.cxx
index 5fcc3ef766..bdc4dfbec1 100644
--- a/pandatool/src/eggprogs/eggTextureCards.cxx
+++ b/pandatool/src/eggprogs/eggTextureCards.cxx
@@ -213,8 +213,10 @@ handle_args(ProgramBase::Args &args) {
     return false;
   }
 
-  copy(args.begin(), args.end(),
-       back_inserter(_texture_names));
+  ProgramBase::Args::iterator ai;
+  for (ai = args.begin(); ai != args.end(); ++ai) {
+    _texture_names.push_back(Filename::from_os_specific(*ai));
+  }
 
   return true;
 }