diff --git a/include/mcx.h b/include/mcx.h
index ab2389ef3a9..a03e5f3c999 100644
--- a/include/mcx.h
+++ b/include/mcx.h
@@ -51,7 +51,7 @@ typedef struct tagMODEMSETTINGS {
        DWORD dwInactivityTimeout;
        DWORD dwSpeakerVolume;
        DWORD dwSpeakerMode;
-       DWORD dwPreferedModemOptions;
+       DWORD dwPreferredModemOptions;
        DWORD dwNegotiatedModemOptions;
        DWORD dwNegotiatedDCERate;
        BYTE  abVariablePortion[1];