diff --git a/legacy/ethumb/Makefile.am b/legacy/ethumb/Makefile.am
index cea71e3b90..13de4cf6ea 100644
--- a/legacy/ethumb/Makefile.am
+++ b/legacy/ethumb/Makefile.am
@@ -11,11 +11,8 @@ MAINTAINERCLEANFILES = \
 	ltmain.sh \
 	missing
 
-EXTRA_DIST = m4/Makefile.in \
-	ethumb.spec
-	README \
-	AUTHORS \
-	COPYING
+EXTRA_DIST = \
+autogen.sh
 
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = ethumb.pc
diff --git a/legacy/ethumb/configure.ac b/legacy/ethumb/configure.ac
index 588e68f2ef..ff6cfc56a1 100644
--- a/legacy/ethumb/configure.ac
+++ b/legacy/ethumb/configure.ac
@@ -199,7 +199,7 @@ AC_SUBST(requirement_ethumb)
 AC_SUBST(requirement_ethumb_client)
 AC_SUBST(dbusservicedir)
 
-AC_OUTPUT([
+AC_CONFIG_FILES([
 ethumb.pc
 ethumb.spec
 ethumb_client.pc
@@ -219,6 +219,8 @@ m4/Makefile
 doc/Makefile
 ])
 
+AC_OUTPUT
+
 txt_strip() {
         echo "[$]@" | sed -e 's/^[[ \t]]*\([[^ \t]]*\)[[ \t]]*$/\1/g'
 }