diff --git a/src/common/fileconf.cpp b/src/common/fileconf.cpp
index 1b0eb091a3..d43cc89957 100644
--- a/src/common/fileconf.cpp
+++ b/src/common/fileconf.cpp
@@ -568,6 +568,8 @@ void wxFileConfig::CleanUp()
 
 wxFileConfig::~wxFileConfig()
 {
+    delete m_conv;
+
     Flush();
 
     CleanUp();