diff --git a/debian/liblockdep-dev.README.Debian b/debian/liblockdep-dev.README.Debian
new file mode 100644
index 000000000..a0673a170
--- /dev/null
+++ b/debian/liblockdep-dev.README.Debian
@@ -0,0 +1,13 @@
+liblockdep for Debian
+---------------------
+
+liblockdep does not have proper documentation, but these articles
+provide an introduction:
+
+    https://lwn.net/Articles/536363/
+    http://www.vctlabs.com/posts/2014/Jul/09/liblockdep/
+
+'lockdep-design.txt' explains some more detail about what lockdep
+does, both in the kernel and as liblockdep.
+
+ -- Ben Hutchings <ben@decadent.org.uk>, Fri, 14 Aug 2015 14:22:55 +0200
diff --git a/debian/templates/control.main.in b/debian/templates/control.main.in
index cb88ca5d3..a1fa00fbd 100644
--- a/debian/templates/control.main.in
+++ b/debian/templates/control.main.in
@@ -78,7 +78,8 @@ Recommends: liblockdep-dev
 Section: devel
 Multi-Arch: allowed
 Description: Runtime locking correctness validator
- TBD
+ lockdep is a wrapper for programs that use the pthreads API, which detects
+ actual and potential deadlocks and other locking bugs.
 
 Package: liblockdep@version@
 Architecture: linux-any
@@ -86,7 +87,8 @@ Depends: ${shlibs:Depends}, ${misc:Depends}
 Section: libs
 Multi-Arch: same
 Description: Runtime locking correctness validator - shared library
- TBD
+ liblockdep is a library for programs that use the pthreads API, which can
+ be used to detect actual and potential deadlocks and other locking bugs.
 
 Package: liblockdep-dev
 Architecture: linux-any
@@ -94,4 +96,5 @@ Depends: ${shlibs:Depends}, ${misc:Depends}
 Section: libdevel
 Multi-Arch: same
 Description: Runtime locking correctness validator - development files
- TBD
+ liblockdep is a library for programs that use the pthreads API, which can
+ be used to detect actual and potential deadlocks and other locking bugs.