diff --git a/src/option.c b/src/option.c
index a97dae6..3195fa8 100644
--- a/src/option.c
+++ b/src/option.c
@@ -5575,6 +5575,7 @@
 	if (idx < 0)	/* not found (should not happen) */
 	{
 	    EMSG2(_(e_intern2), "set_string_option_direct()");
+	    EMSG2(_("For option %s"), name);
 	    return;
 	}
     }