diff --git a/docs/lasso-book/writing-a-c-sp.txt b/docs/lasso-book/writing-a-c-sp.txt
index b3e855d2..8de66b8b 100644
--- a/docs/lasso-book/writing-a-c-sp.txt
+++ b/docs/lasso-book/writing-a-c-sp.txt
@@ -56,7 +56,7 @@ support.  It is possible to workaround the bug::
 
   $ gcc hello.c -o hello $(pkg-config lasso --cflags --libs)
  <command line>:4:16: missing terminating " character
-  $ gcc hello.c -o hello $(pkg-config xmlsec1 --cflags --libs | tr -d '\\')
+  $ gcc hello.c -o hello $(pkg-config lasso --cflags --libs | tr -d '\\')
   $ ./hello
  Hello world.