diff --git a/include/Makefile.am b/include/Makefile.am
index c5cdb4ff..58277232 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -9,10 +9,12 @@ x11include_HEADERS=\
 	X11/Xutil.h \
 	X11/cursorfont.h \
 	X11/Xregion.h \
-	X11/ImUtil.h \
+	X11/ImUtil.h
+
+nodist_x11include_HEADERS=\
 	X11/XlibConf.h
 
-EXTRA_DIST=\
+EXTRA_DIST = \
 	X11/XlibConf.h.in
 
 if XCB