diff --git a/wmbattery/ChangeLog b/wmbattery/ChangeLog
index 3e21109..674a6e6 100644
--- a/wmbattery/ChangeLog
+++ b/wmbattery/ChangeLog
@@ -1,3 +1,7 @@
+wmbattery (2.51)
+  * Fix memory leak (Debian bug #816872).
+    Thanks to David Johnson <davijoh3@cisco.com> for the patch.
+
 wmbattery (2.50)
   * Free memory allocated by strdup.  This corrects a mistake in [1] noticed by
     Andrew Shadura [2].
diff --git a/wmbattery/configure.ac b/wmbattery/configure.ac
index 0e09a84..b6065fb 100644
--- a/wmbattery/configure.ac
+++ b/wmbattery/configure.ac
@@ -1,5 +1,5 @@
 dnl Process this file with autoconf to produce a configure script.
-AC_INIT(wmbattery.c, 2.50)
+AC_INIT(wmbattery.c, 2.51)
 AC_CONFIG_HEADER(config.h)
 
 AC_CONFIG_AUX_DIR(autoconf)