diff --git a/src/frontend/Makefile.am b/src/frontend/Makefile.am
index b3e77b162..d9ee84d97 100644
--- a/src/frontend/Makefile.am
+++ b/src/frontend/Makefile.am
@@ -2,7 +2,7 @@
 
 SUBDIRS = plotting help parser wdisp numparam trannoise
 DIST_SUBDIRS = plotting help parser wdisp numparam trannoise
-EXTRA_DIST = testcommands.c
+EXTRA_DIST = testcommands.c parse-bison-y.h
 
 BUILT_SOURCES = parse-bison.h
 
diff --git a/src/spicelib/parser/Makefile.am b/src/spicelib/parser/Makefile.am
index 63ed603dc..3cc7e7cce 100644
--- a/src/spicelib/parser/Makefile.am
+++ b/src/spicelib/parser/Makefile.am
@@ -3,6 +3,7 @@
 noinst_LTLIBRARIES = libinp.la
 
 BUILT_SOURCES = inpptree-parser.h
+EXTRA_DIST = inpptree-parser-y.h
 
 libinp_la_SOURCES = \
 		ifeval.c	\