diff --git a/src/platform/portduino/PortduinoGlue.cpp b/src/platform/portduino/PortduinoGlue.cpp
index fa0c8c5027..750cc16309 100644
--- a/src/platform/portduino/PortduinoGlue.cpp
+++ b/src/platform/portduino/PortduinoGlue.cpp
@@ -87,7 +87,8 @@ void getMacAddr(uint8_t *dmac)
         if (strlen(optionMac) >= 12) {
             MAC_from_string(optionMac, dmac);
         } else {
-            uint32_t hwId = sscanf(optionMac, "%u", &hwId);
+            uint32_t hwId;
+            sscanf(optionMac, "%u", &hwId);
             dmac[0] = 0x80;
             dmac[1] = 0;
             dmac[2] = hwId >> 24;
@@ -532,4 +533,4 @@ bool MAC_from_string(std::string mac_str, uint8_t *dmac)
     } else {
         return false;
     }
-}
+}
\ No newline at end of file