diff --git a/data/Makefile.am b/data/Makefile.am
index c853e264..2c910a50 100644
--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -26,4 +26,4 @@
 configdir = ${sysconfdir}/conky
 dist_config_DATA = conky.conf conky_no_x11.conf
 
-# vi:set ts=8 sw=8 noet ai nocindent syntax=automake:
+# vi:set ts=4 sw=4 noet ai nocindent syntax=automake:
diff --git a/doc/Makefile.am b/doc/Makefile.am
index 9a374b65..42462471 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -29,4 +29,4 @@ man_MANS = conky.1
 
 EXTRA_DIST = $(DOCS) command_options.xml config_settings.xml docgen.sh docs.xml variables.xml variables.xsl config_settings.xsl lua.xml lua.xsl
 
-# vi:set ts=8 sw=8 noet ai nocindent syntax=automake:
+# vi:set ts=4 sw=4 noet ai nocindent syntax=automake:
diff --git a/lua/Makefile.am b/lua/Makefile.am
index 49fcde01..dbf9ae31 100644
--- a/lua/Makefile.am
+++ b/lua/Makefile.am
@@ -58,3 +58,4 @@ pkglib_LTLIBRARIES = $(libcairo) $(libimlib2)
 
 endif # BUILD_LUA
 
+# vi:set ts=4 sw=4 noet ai nocindent syntax=automake: