diff --git a/Makefile.am b/Makefile.am
index 4ecc8db1..f85b66d7 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -217,6 +217,9 @@ EXTRA_DIST=							\
 	libcperciva/POSIX/posix-restrict.c			\
 	libcperciva/POSIX/posix-stat-st_mtim.c			\
 	libcperciva/POSIX/posix-trivial.c			\
+	libcperciva/apisupport/Build/apisupport-LIBCRYPTO-LOW_LEVEL_AES.c \
+	libcperciva/apisupport/Build/apisupport-NONPOSIX-MEMLIMIT.c \
+	libcperciva/apisupport/Build/apisupport.sh		\
 	libcperciva/cpusupport/Build/cpusupport-ARM-AES.c	\
 	libcperciva/cpusupport/Build/cpusupport-ARM-SHA256.c	\
 	libcperciva/cpusupport/Build/cpusupport-HWCAP-ELF_AUX_INFO.c \