diff --git a/wmbattery/Makefile.in b/wmbattery/Makefile.in
index 1b0498b..68b05e1 100644
--- a/wmbattery/Makefile.in
+++ b/wmbattery/Makefile.in
@@ -1,6 +1,7 @@
 # Info for make, this will be preprocessed by autoconf.
 prefix		= @prefix@
 exec_prefix 	= @exec_prefix@
+datarootdir	= @datarootdir@
 bindir		= @bindir@
 icondir		= @datadir@/icons/wmbattery
 man1dir		= @mandir@/man1