diff --git a/Makefile.am b/Makefile.am
index 16658f863b59fc768dfa1f8baf32fad4932a2657..aaee3c05a766756a02c9adee8979d75c01d506a8 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -99,7 +99,7 @@ MKDB_OPTIONS         = --xml-mode --output-format=xml
 MKTMPL_OPTIONS       =
 MKHTML_OPTIONS       =
 FIXXREF_OPTIONS      =
-HFILE_GLOB           =
+HFILE_GLOB           = capsule/capsule.h
 CFILE_GLOB           =
 EXTRA_HFILES         =
 IGNORE_HFILES        =