diff --git a/cde/programs/dthelp/parser/pass2/eltdef/Makefile.am b/cde/programs/dthelp/parser/pass2/eltdef/Makefile.am
index 666f7dd5d..0e79910a4 100644
--- a/cde/programs/dthelp/parser/pass2/eltdef/Makefile.am
+++ b/cde/programs/dthelp/parser/pass2/eltdef/Makefile.am
@@ -1,5 +1,7 @@
 MAINTAINERCLEANFILES = Makefile.in
 
+.NOTPARALLEL:
+
 noinst_PROGRAMS = eltdef
 
 HTAG2       = ..
diff --git a/cde/programs/dthelp/parser/pass2/util/Makefile.am b/cde/programs/dthelp/parser/pass2/util/Makefile.am
index 4826cd82e..72821d95f 100644
--- a/cde/programs/dthelp/parser/pass2/util/Makefile.am
+++ b/cde/programs/dthelp/parser/pass2/util/Makefile.am
@@ -1,5 +1,7 @@
 MAINTAINERCLEANFILES = Makefile.in
 
+.NOTPARALLEL:
+
 noinst_LIBRARIES = libutil.a
 
 noinst_PROGRAMS = context fclndir