diff --git a/make-tapreg-dotc b/make-tapreg-dotc
index aa5e6931ea..686f308011 100755
--- a/make-tapreg-dotc
+++ b/make-tapreg-dotc
@@ -22,7 +22,8 @@ shift
 #
 rm -f ${outfile}-tmp
 echo '/* Do not modify this file.  */' >${outfile}-tmp
-echo '/* It is created automatically by the Makefile.  */'>>${outfile}-tmp
+echo '/* It is created automatically by the Makefile.  */' >>${outfile}-tmp
+echo '#include "register.h"' >>${outfile}-tmp
 
 #
 # Build code to call all the tap listener registration routines.