diff --git a/lib/xopen-source.h b/lib/xopen-source.h
index 4b23b4c..a654457 100644
--- a/lib/xopen-source.h
+++ b/lib/xopen-source.h
@@ -11,7 +11,7 @@
 
   This file, xopen-source.h, redefines _XOPEN_SOURCE to be the latest
   version that is supported by the operating system's C library.  It is
-  used by the Autoconf macro in m4/xopen-source.m4.
+  used by the Autoconf macro in ../m4/xopen-source.m4.
 
 
   This program is free software: you can redistribute it and/or modify it
diff --git a/m4/xopen-source.m4 b/m4/xopen-source.m4
index a9c2fe3..c0482cc 100644
--- a/m4/xopen-source.m4
+++ b/m4/xopen-source.m4
@@ -12,7 +12,7 @@
 # latest version of _XOPEN_SOURCE supported by the C library.  It does
 # this by compiling code with various values of that symbol.  Once a
 # particular value compiles without error, it redefines _XOPEN_SOURCE to
-# that value using the auxiliary file <lib/xopen-source.h> and sets
+# that value using the auxiliary file ../lib/xopen-source.h and sets
 # $x_cv_latest_xopen_source to one of the following values:
 #
 #   700       - _XOPEN_SOURCE=700 (for SUSv4 / XPG7) was accepted