diff --git a/generators/dvi/psheader.cpp b/generators/dvi/psheader.cpp
index 650444ca9..f4912eb6e 100644
--- a/generators/dvi/psheader.cpp
+++ b/generators/dvi/psheader.cpp
@@ -1,3 +1,6 @@
+#ifndef _psheader_cpp_
+#define _psheader_cpp_
+
 /*
  *   DO NOT EDIT THIS FILE!
  *   It was created by squeeze.c from another file (see the Makefile).
@@ -122,3 +125,4 @@ moveto}N/fil{fill SaveX SaveY moveto}N/ellipse{/endangle X/startangle X\n\
 1 startangle endangle arc savematrix setmatrix}N end\n";
 
 //int	psheaderlen	= 7620;
+#endif