--- tw.parse.c
+++ tw.parse.c	2008-11-26 18:52:07.190195106 +0100
@@ -347,9 +347,19 @@ tenematch(Char *inputline, int num_read,
 		goto end;
 	    }
 	}
+
 	Strbuf_append(&wordbuf, qline.s + wordp);
 	Strbuf_terminate(&wordbuf);
 	cleanup_push(&wordbuf, Strbuf_cleanup);
+
+	if ((looking == TW_COMMAND) && (*wordbuf.s == '/')) {
+	    if (executable((Char*)0, wordbuf.s, 0)) {
+		cleanup_until(&wordbuf);
+		search_ret = 0;
+		goto end;
+	    }
+	}
+
 	search_ret = spell_me(&wordbuf, looking, pat, suf);
 	qline.len = wordp;
 	Strbuf_append(&qline, wordbuf.s);