diff --git a/NEWS b/NEWS
index b203e1d0b..9f2f8a03c 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,8 @@
 ver 0.20.3 (not yet released)
 * protocol
   - "playlistadd" creates new playlist if it does not exist, as documented
+* database
+  - proxy: fix error "terminate called after throwing ..."
 * replay gain: don't reset ReplayGain levels when unpausing playback
 * silence surround channels when converting from stereo
 * use shortcuts such as "dsd64" in log messages
diff --git a/src/db/plugins/ProxyDatabasePlugin.cxx b/src/db/plugins/ProxyDatabasePlugin.cxx
index 2ef1a656e..f84645bec 100644
--- a/src/db/plugins/ProxyDatabasePlugin.cxx
+++ b/src/db/plugins/ProxyDatabasePlugin.cxx
@@ -46,7 +46,7 @@
 #include <string>
 #include <list>
 
-class LibmpdclientError final : std::runtime_error {
+class LibmpdclientError final : public std::runtime_error {
 	enum mpd_error code;
 
 public: