diff --git a/src/bsdiff-4.3/Makefile.am b/src/bsdiff-4.3/Makefile.am
index 953139f55..57970bc55 100644
--- a/src/bsdiff-4.3/Makefile.am
+++ b/src/bsdiff-4.3/Makefile.am
@@ -1,3 +1,5 @@
+EXTRA_DIST = compat-include
+
 libexec_PROGRAMS = bsdiff bspatch
 
 bsdiff_SOURCES = bsdiff.c