diff --git a/src/gui/guiConfirmRegistration.cpp b/src/gui/guiConfirmRegistration.cpp
index 92ca94d425c0..fea9f5cda137 100644
--- a/src/gui/guiConfirmRegistration.cpp
+++ b/src/gui/guiConfirmRegistration.cpp
@@ -99,9 +99,10 @@ void GUIConfirmRegistration::regenerateGui(v2u32 screensize)
 		snprintf(info_text_buf, sizeof(info_text_buf), info_text_template.c_str(),
 				address.c_str(), m_playername.c_str());
 
-		gui::IGUIEditBox *e = new gui::intlGUIEditBox(
-				utf8_to_wide_c(info_text_buf), true, Environment, this,
-				ID_message, rect2, false, true);
+		wchar_t *info_text_buf_wide = utf8_to_wide_c(info_text_buf);
+		gui::IGUIEditBox *e = new gui::intlGUIEditBox(info_text_buf_wide, true,
+				Environment, this, ID_message, rect2, false, true);
+		delete[] info_text_buf_wide;
 		e->drop();
 		e->setMultiLine(true);
 		e->setWordWrap(true);
diff --git a/src/util/string.cpp b/src/util/string.cpp
index 25f573420114..388e8d293c0b 100644
--- a/src/util/string.cpp
+++ b/src/util/string.cpp
@@ -167,6 +167,8 @@ std::string wide_to_utf8(const std::wstring &input)
 
 #endif // _WIN32
 
+// You must free the returned string!
+// The returned string is allocated using new
 wchar_t *utf8_to_wide_c(const char *str)
 {
 	std::wstring ret = utf8_to_wide(std::string(str));