Fixed typo.

diff --git a/misc/comm.c b/misc/comm.c
index f28c415..cb5c8bc 100644
--- a/misc/comm.c
+++ b/misc/comm.c
@@ -823,7 +823,7 @@
         int act;
         unsigned int mstat;
         if ((act = GetCommPort(fd)) == -1) {
-            WARN(comm," fd %d not comm port\n",act);
+            WARN(comm," fd %d not comm port\n",fd);
             return CE_MODE;
         }
         stol = (unsigned char *)unknown[act] + COMM_MSR_OFFSET;