diff --git a/libslax/Makefile.am b/libslax/Makefile.am
index 800d16f9..8570f784 100644
--- a/libslax/Makefile.am
+++ b/libslax/Makefile.am
@@ -38,6 +38,7 @@ libslax_la_LIBADD = ${LIBXSLT_LIBS} -lexslt ${LIBXML_LIBS}
 
 slaxinc_HEADERS = \
      slax.h \
+     slaxconfig.h \
      slaxdata.h \
      slaxdyn.h \
      slaxversion.h \