diff --git a/src/common/mimecmn.cpp b/src/common/mimecmn.cpp
index 38a97a155b..80457d0b61 100644
--- a/src/common/mimecmn.cpp
+++ b/src/common/mimecmn.cpp
@@ -414,7 +414,8 @@ wxMimeTypesManager::wxMimeTypesManager()
 
 wxMimeTypesManager::~wxMimeTypesManager()
 {
-    delete m_impl;
+    if ( m_impl )
+        delete m_impl;
 }
 
 wxFileType *