diff --git a/client/client_test.go b/client/client_test.go
index 0d39bbc3b..7443e2877 100644
--- a/client/client_test.go
+++ b/client/client_test.go
@@ -269,6 +269,7 @@ func (s *clientTestSuite) testStmt_DropTable() {
 
 	stmt, err := s.c.Prepare(str)
 	require.NoError(s.T(), err)
+	require.Zero(s.T(), stmt.WarningsNum())
 
 	defer stmt.Close()
 
diff --git a/client/stmt.go b/client/stmt.go
index 30d878b55..bab79c7ba 100644
--- a/client/stmt.go
+++ b/client/stmt.go
@@ -265,9 +265,14 @@ func (c *Conn) Prepare(query string) (*Stmt, error) {
 	s.params = int(binary.LittleEndian.Uint16(data[pos:]))
 	pos += 2
 
-	// warnings
-	s.warnings = int(binary.LittleEndian.Uint16(data[pos:]))
-	// pos += 2
+	// reserved
+	pos += 1
+
+	if len(data) >= 12 {
+		// warnings
+		s.warnings = int(binary.LittleEndian.Uint16(data[pos:]))
+		// pos += 2
+	}
 
 	if s.params > 0 {
 		if err := s.conn.readUntilEOF(); err != nil {