diff --git a/documentation/adt-manual/adt-command.xml b/documentation/adt-manual/adt-command.xml
index 5df6a6f621..c78d18a16d 100644
--- a/documentation/adt-manual/adt-command.xml
+++ b/documentation/adt-manual/adt-command.xml
@@ -186,7 +186,7 @@
             rebuild it using the appropriate cross-toolchain tools:
             <literallayout class='monospaced'>
      $ ./configure --host=armv5te-poky-linux-gnueabi \
-        --with-libtool-sysroot=<replaceable>sysroot-dir</replaceable>
+        --with-libtool-sysroot=<replaceable>sysroot_dir</replaceable>
             </literallayout>
             <note>
                 If the <filename>configure</filename> script results in problems recognizing the