diff --git a/configure b/configure
index c4997ce5..619d2207 100755
--- a/configure
+++ b/configure
@@ -1239,12 +1239,10 @@ Optional Features:
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
-  --with-openssl=/path/to/openssl
-
-  --with-module-prefix=/path/to/moduledir
-
-  --with-module-data-prefix=/path/to/moduledir
-
+  --with-openssl=DIR      openssl's installation prefix
+  --with-module-prefix    module object code [LIBDIR/znc]
+  --with-module-data-prefix=DIR
+                          static module data (webadmin skins) [DATADIR/znc]
 
 Some influential environment variables:
   CXX         C++ compiler command
diff --git a/configure.in b/configure.in
index 3b08661d..4d19e17b 100644
--- a/configure.in
+++ b/configure.in
@@ -64,7 +64,7 @@ if test -z "$ISCYGWIN" ; then
 fi
 
 AC_ARG_WITH( [openssl],
-	AC_HELP_STRING([--with-openssl=/path/to/openssl], []),
+	AC_HELP_STRING([--with-openssl=DIR], [openssl's installation prefix]),
 	[OPENSSL=$withval],)
 AC_ARG_ENABLE( [debug],
 	AC_HELP_STRING([--enable-debug], [enable debuging]),
@@ -126,12 +126,14 @@ if test -z "$prefix" || test $prefix = "NONE"; then
 fi
 
 AC_ARG_WITH( [module-prefix],
-	AC_HELP_STRING([--with-module-prefix=/path/to/moduledir], []),
+	AC_HELP_STRING([--with-module-prefix],
+		       [module object code [[LIBDIR/znc]]]),
 	[MODDIR=$withval],
 	[MODDIR="${libdir}/znc"] )
 
 AC_ARG_WITH( [module-data-prefix],
-	AC_HELP_STRING([--with-module-data-prefix=/path/to/moduledir], []),
+	AC_HELP_STRING([--with-module-data-prefix=DIR],
+		       [static module data (webadmin skins) [[DATADIR/znc]]]),
 	[DATADIR=$withval],
 	[DATADIR="${datadir}/znc"] )