diff --git a/pdb/enums.pl b/pdb/enums.pl
index 0c605d4af8..7884897929 100644
--- a/pdb/enums.pl
+++ b/pdb/enums.pl
@@ -21,6 +21,7 @@ package Gimp::CodeGen::enums;
 %enums = (
     GeglDistanceMetric =>
 	{ contig => 1,
+	  header => '',
 	  external => 1,
 	  symbols => [ qw(GEGL_DISTANCE_METRIC_EUCLIDEAN
 			  GEGL_DISTANCE_METRIC_MANHATTAN