diff --git a/src/platform/silabs/NetworkCommissioningWiFiDriver.h b/src/platform/silabs/NetworkCommissioningWiFiDriver.h
index d311b11dda43a7..7e7dad3f3e9cdc 100644
--- a/src/platform/silabs/NetworkCommissioningWiFiDriver.h
+++ b/src/platform/silabs/NetworkCommissioningWiFiDriver.h
@@ -120,7 +120,7 @@ class SlWiFiDriver final : public WiFiDriver
 
     CHIP_ERROR ConnectWiFiNetwork(const char * ssid, uint8_t ssidLen, const char * key, uint8_t keyLen);
 
-    chip::BitFlags<WiFiSecurity> ConvertSecuritytype(uint8_t security);
+    chip::BitFlags<WiFiSecurity> ConvertSecuritytype(wfx_sec_t security);
 
     void OnConnectWiFiNetwork();
     static SlWiFiDriver & GetInstance()