diff --git a/lib/librt/Makefile b/lib/librt/Makefile
index 9f3f392e56f..6d59ccaaf7d 100644
--- a/lib/librt/Makefile
+++ b/lib/librt/Makefile
@@ -1,7 +1,7 @@
 # $FreeBSD$
 
-SHLIBDIR?=/lib
-LIBDIR?=/lib
+SHLIBDIR?=	/lib
+LIBDIR?=	/lib
 
 .include <src.opts.mk>