diff --git a/src/blackgui/components/altitudedialog.cpp b/src/blackgui/components/altitudedialog.cpp
index 87e1c64c9..c4261c482 100644
--- a/src/blackgui/components/altitudedialog.cpp
+++ b/src/blackgui/components/altitudedialog.cpp
@@ -130,6 +130,7 @@ namespace BlackGui
                 m_altitudeStr = ui->le_AltitudeConvertedFt->text() % u"m";
                 break;
             case StringOnly:
+                m_altitudeStr = ui->le_String->text();
                 return;
             case Unknown:
             default: