diff --git a/plink.c b/plink.c
index 9229fa8e..ed4f1345 100644
--- a/plink.c
+++ b/plink.c
@@ -291,8 +291,6 @@ int main(int argc, char **argv)
 		continue;
 	    } else if (!strcmp(p, "-batch")) {
 		console_batch_mode = 1;
-	    } else if (!strcmp(p, "-log")) {
-		logfile = "putty.log";
 	    }
 	} else if (*p) {
 	    if (!*cfg.host) {
diff --git a/putty.h b/putty.h
index 46e39c6f..d506b664 100644
--- a/putty.h
+++ b/putty.h
@@ -132,7 +132,6 @@ GLOBAL unsigned char unitab_ctrl[256];
 #define LGTYP_ASCII 1		       /* logmode: pure ascii */
 #define LGTYP_DEBUG 2		       /* logmode: all chars of traffic */
 #define LGTYP_PACKETS 3		       /* logmode: SSH data packets */
-GLOBAL char *logfile;
 
 /*
  * Window handles for the dialog boxes that can be running during a