diff --git a/c/reg_test/input/Makefile.am b/c/reg_test/input/Makefile.am
index a0db1f85a..023e34ec8 100644
--- a/c/reg_test/input/Makefile.am
+++ b/c/reg_test/input/Makefile.am
@@ -2,6 +2,14 @@ SUBDIRS=	rfc-csv
 EXTRA_DIST=	\
 		a.csv \
 		a.pprint \
+		abixy.csv \
+		abixy.dkvp \
+		abixy.json \
+		abixy.md \
+		abixy.nidx \
+		abixy.pprint \
+		abixy.tsv \
+		abixy.xtab \
 		abixy \
 		abixy-het \
 		abixy-wide \
diff --git a/c/reg_test/input/abixy.csv b/c/reg_test/input/abixy.csv
new file mode 100644
index 000000000..e69de29bb
diff --git a/c/reg_test/input/abixy.dkvp b/c/reg_test/input/abixy.dkvp
new file mode 100644
index 000000000..e69de29bb
diff --git a/c/reg_test/input/abixy.json b/c/reg_test/input/abixy.json
new file mode 100644
index 000000000..e69de29bb
diff --git a/c/reg_test/input/abixy.md b/c/reg_test/input/abixy.md
new file mode 100644
index 000000000..e69de29bb
diff --git a/c/reg_test/input/abixy.nidx b/c/reg_test/input/abixy.nidx
new file mode 100644
index 000000000..e69de29bb
diff --git a/c/reg_test/input/abixy.pprint b/c/reg_test/input/abixy.pprint
new file mode 100644
index 000000000..e69de29bb
diff --git a/c/reg_test/input/abixy.tsv b/c/reg_test/input/abixy.tsv
new file mode 100644
index 000000000..e69de29bb
diff --git a/c/reg_test/input/abixy.xtab b/c/reg_test/input/abixy.xtab
new file mode 100644
index 000000000..e69de29bb