diff --git a/scp.c b/scp.c
index 0779c3c2b7c..9589322eb0c 100644
--- a/scp.c
+++ b/scp.c
@@ -505,6 +505,7 @@ main(int argc, char **argv)
 	addargs(&args, "-oClearAllForwardings=yes");
 	addargs(&args, "-oRemoteCommand=none");
 	addargs(&args, "-oRequestTTY=no");
+	addargs(&args, "-oControlMaster=no");
 
 	fflag = Tflag = tflag = 0;
 	while ((ch = getopt(argc, argv,