diff --git a/configure.in b/configure.in
index 0e45e064f1..7978d04754 100644
--- a/configure.in
+++ b/configure.in
@@ -94,7 +94,7 @@ AC_SUBST(bindir)
 AC_SUBST(includedir)
 
 AC_ARG_WITH([pkgconfigdir],
-	[AS_HELP_STRING([--with-pkgconfigdir=DIR], [Installation directory for pkgconfig file (default: \${libdir}/pkgconfig)])],
+	[AS_HELP_STRING([--with-pkgconfigdir=DIR], [Installation directory for pkgconfig file (default: ${libdir}/pkgconfig)])],
 	[case "${withval}" in
 	 yes|no) AC_MSG_ERROR([Invalid value ${withval} for option --with-pkgconfigdir]) ;;
 	 *) pkgconfigdir="${withval}" ;;