diff --git a/src/gui/dialogs/message.hpp b/src/gui/dialogs/message.hpp
index 0c77e100ad6..eb5b2493ab2 100644
--- a/src/gui/dialogs/message.hpp
+++ b/src/gui/dialogs/message.hpp
@@ -30,6 +30,7 @@ class tmessage : public tdialog
 public:
 	tmessage(const std::string& title, const std::string& message)
 		: title_(title)
+		, image_()
 		, message_(message)
 	{}