diff --git a/ssl/test/runner/common.go b/ssl/test/runner/common.go
index f5ceefce..a253cb9d 100644
--- a/ssl/test/runner/common.go
+++ b/ssl/test/runner/common.go
@@ -475,8 +475,9 @@ type ProtocolBugs struct {
 	// two records.
 	FragmentAlert bool
 
-	// SendSpuriousAlert will cause an spurious, unwanted alert to be sent.
-	SendSpuriousAlert bool
+	// SendSpuriousAlert, if non-zero, will cause an spurious, unwanted
+	// alert to be sent.
+	SendSpuriousAlert alert
 
 	// RsaClientKeyExchangeVersion, if non-zero, causes the client to send a
 	// ClientKeyExchange with the specified version rather than the
diff --git a/ssl/test/runner/conn.go b/ssl/test/runner/conn.go
index 90ce9bb0..6207b02a 100644
--- a/ssl/test/runner/conn.go
+++ b/ssl/test/runner/conn.go
@@ -1093,8 +1093,8 @@ func (c *Conn) Write(b []byte) (int, error) {
 		return 0, alertInternalError
 	}
 
-	if c.config.Bugs.SendSpuriousAlert {
-		c.sendAlertLocked(alertRecordOverflow)
+	if c.config.Bugs.SendSpuriousAlert != 0 {
+		c.sendAlertLocked(c.config.Bugs.SendSpuriousAlert)
 	}
 
 	// SSL 3.0 and TLS 1.0 are susceptible to a chosen-plaintext
diff --git a/ssl/test/runner/runner.go b/ssl/test/runner/runner.go
index 6ee34adc..70ed3146 100644
--- a/ssl/test/runner/runner.go
+++ b/ssl/test/runner/runner.go
@@ -375,13 +375,36 @@ var testCases = []testCase{
 		shouldFail:    true,
 		expectedError: ":HANDSHAKE_RECORD_BEFORE_CCS:",
 	},
+	{
+		testType: serverTest,
+		name:     "Alert",
+		config: Config{
+			Bugs: ProtocolBugs{
+				SendSpuriousAlert: alertRecordOverflow,
+			},
+		},
+		shouldFail:    true,
+		expectedError: ":TLSV1_ALERT_RECORD_OVERFLOW:",
+	},
+	{
+		protocol: dtls,
+		testType: serverTest,
+		name:     "Alert-DTLS",
+		config: Config{
+			Bugs: ProtocolBugs{
+				SendSpuriousAlert: alertRecordOverflow,
+			},
+		},
+		shouldFail:    true,
+		expectedError: ":TLSV1_ALERT_RECORD_OVERFLOW:",
+	},
 	{
 		testType: serverTest,
 		name:     "FragmentAlert",
 		config: Config{
 			Bugs: ProtocolBugs{
 				FragmentAlert:     true,
-				SendSpuriousAlert: true,
+				SendSpuriousAlert: alertRecordOverflow,
 			},
 		},
 		shouldFail:    true,
@@ -394,7 +417,7 @@ var testCases = []testCase{
 		config: Config{
 			Bugs: ProtocolBugs{
 				FragmentAlert:     true,
-				SendSpuriousAlert: true,
+				SendSpuriousAlert: alertRecordOverflow,
 			},
 		},
 		shouldFail:    true,