diff --git a/libraries/libwups/WUPSConfigItemButtonCombo.cpp b/libraries/libwups/WUPSConfigItemButtonCombo.cpp
index a4c367c..8d7d1a0 100644
--- a/libraries/libwups/WUPSConfigItemButtonCombo.cpp
+++ b/libraries/libwups/WUPSConfigItemButtonCombo.cpp
@@ -81,6 +81,9 @@ namespace {
     }
 
     std::string getComboAsString(const uint32_t value) {
+        if (value == 0) {
+            return "Not Set";
+        }
         char comboString[60] = {};
 
         for (uint32_t i = 0; i < 32; i++) {