diff --git a/parse_test.go b/parse_test.go
index 10f89f77..fd6ccfe5 100644
--- a/parse_test.go
+++ b/parse_test.go
@@ -1428,3 +1428,20 @@ func TestUnbalancedParens(t *testing.T) {
 		t.Fatalf("failed to detect extra opening brace")
 	}
 }
+
+func TestBad(t *testing.T) {
+	tests := []string{
+		`" TYPE257 9 1E12\x00\x105"`,
+		`" TYPE256  9 5"`,
+		`" TYPE257 0\"00000000000000400000000000000000000\x00\x10000000000000000000000000000000000 9 l\x16\x01\x005266"`,
+	}
+	for i := range tests {
+		s, err := strconv.Unquote(tests[i])
+		if err != nil {
+			t.Fatalf("failed to unquote: %q: %s", tests[i], err)
+		}
+		if _, err = NewRR(s); err == nil {
+			t.Errorf("correctly parsed %q", s)
+		}
+	}
+}
diff --git a/scan_rr.go b/scan_rr.go
index c53ba1d5..d28e46bb 100644
--- a/scan_rr.go
+++ b/scan_rr.go
@@ -1797,7 +1797,7 @@ func setURI(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
 	if err != nil {
 		return nil, err, ""
 	}
-	if len(s) > 1 {
+	if len(s) != 1 {
 		return nil, &ParseError{f, "bad URI Target", l}, ""
 	}
 	rr.Target = s[0]
@@ -2027,7 +2027,7 @@ func setCAA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) {
 	if e != nil {
 		return nil, e, ""
 	}
-	if len(s) > 1 {
+	if len(s) != 1 {
 		return nil, &ParseError{f, "bad CAA Value", l}, ""
 	}
 	rr.Value = s[0]