diff --git a/Makefile.am b/Makefile.am
index b75a3b1..b35c595 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -14,7 +14,7 @@ pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = libbase58.pc
 
 dist_noinst_SCRIPTS = autogen.sh
-dist_doc_DATA = AUTHORS README
+dist_doc_DATA = AUTHORS COPYING README
 
 if USE_TOOL
 bin_PROGRAMS = base58