diff --git a/src/platforms/posix/handler.cpp b/src/platforms/posix/handler.cpp
index f2861584..35f0a21b 100644
--- a/src/platforms/posix/handler.cpp
+++ b/src/platforms/posix/handler.cpp
@@ -40,16 +40,24 @@ namespace posix {
 
 
 posixHandler::posixHandler()
-	: m_socketFactory(new posixSocketFactory()),
-	  m_fileSysFactory(new posixFileSystemFactory())
 {
+#if VMIME_HAVE_MESSAGING_FEATURES
+	m_socketFactory = new posixSocketFactory();
+#endif
+#if VMIME_HAVE_FILESYSTEM_FEATURES
+	m_fileSysFactory = new posixFileSystemFactory();
+#endif
 }
 
 
 posixHandler::~posixHandler()
 {
+#if VMIME_HAVE_MESSAGING_FEATURES
 	delete (m_socketFactory);
+#endif
+#if VMIME_HAVE_FILESYSTEM_FEATURES
 	delete (m_fileSysFactory);
+#endif
 }
 
 
diff --git a/src/platforms/posix/handler.hpp b/src/platforms/posix/handler.hpp
index 145595b2..252d45d3 100644
--- a/src/platforms/posix/handler.hpp
+++ b/src/platforms/posix/handler.hpp
@@ -69,8 +69,13 @@ public:
 
 private:
 
+#if VMIME_HAVE_MESSAGING_FEATURES
 	posixSocketFactory* m_socketFactory;
+#endif
+
+#if VMIME_HAVE_FILESYSTEM_FEATURES
 	posixFileSystemFactory* m_fileSysFactory;
+#endif
 };