diff --git a/man/man3/stringsize.3 b/man/man3/stringsize.3
index 0e4e3ca..ac57f4a 100644
--- a/man/man3/stringsize.3
+++ b/man/man3/stringsize.3
@@ -55,7 +55,7 @@
 .SH FILES
 .BR /lib/font/bit "    directory of fonts
 .SH SOURCE
-.B /sys/src/libdraw
+.B /usr/local/plan9/src/libdraw
 .SH "SEE ALSO"
 .IR addpt (3),
 .IR cachechars (3),