diff --git a/dsa_test.go b/dsa_test.go
index b570294b..6ba5eb9a 100644
--- a/dsa_test.go
+++ b/dsa_test.go
@@ -161,8 +161,15 @@ func TestNewPublicKeyDSAWithBadPublicKey(t *testing.T) {
 	}
 	Y := bbig.Enc(fromHex("32969E5780CFE1C849A1C276D7AEB4F38A23B591739AA2FE197349AEEBD31366AEE5EB7E6C6DDB7C57D02432B30DB5AA66D9884299FAA72568944E4EEDC92EA3FBC6F39F53412FBCC563208F7C15B737AC8910DBC2D9C9B8C001E72FDC40EB694AB1F06A5A2DBD18D9E36C66F31F566742F11EC0A52E9F7B89355C02FB5D32D2"))
 
-	_, err := openssl.NewPublicKeyDSA(params, Y)
+	pub, err := openssl.NewPublicKeyDSA(params, Y)
 	if err == nil {
+		t.Fatal(err)
+	}
+	sig, err := asn1.Marshal(dsaSignature{fromHex("2"), fromHex("4")})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if openssl.VerifyDSA(pub, []byte("testing"), sig) {
 		t.Errorf("Unexpected success with non-existent mod inverse of Q")
 	}
 }