diff --git a/apps/ca.c b/apps/ca.c
index 4dc9176c8..a0f9f7955 100644
--- a/apps/ca.c
+++ b/apps/ca.c
@@ -325,6 +325,7 @@ opthelp:
                 ret = 0;
                 goto end;
             case OPT_IN:
+		req = 1;
                 infile = opt_arg();
                 break;
             case OPT_OUT: