diff --git a/src/PostgresExecutor.php b/src/PostgresExecutor.php
index fcbc262..258c5cc 100644
--- a/src/PostgresExecutor.php
+++ b/src/PostgresExecutor.php
@@ -9,7 +9,7 @@
 /**
  * @extends Executor<PostgresResult, PostgresStatement>
  */
-interface PostgresExecutor extends PostgresQuoter, Executor
+interface PostgresExecutor extends Executor
 {
     /**
      * @return PostgresResult Result object specific to this library.
@@ -34,4 +34,32 @@ public function execute(string $sql, array $params = []): PostgresResult;
      * @throws ConnectionException If the connection to the database is lost.
      */
     public function notify(string $channel, string $payload = ""): PostgresResult;
+
+    /**
+     * Quotes (escapes) the given string for use as a string literal or identifier in a query. This method wraps the
+     * string in single quotes, so additional quotes should not be added in the query.
+     *
+     * @param string $data Unquoted data.
+     *
+     * @return string Quoted string wrapped in single quotes.
+     *
+     * @throws \Error If the connection to the database has been closed.
+     */
+    public function quoteString(string $data): string;
+
+    /**
+     * Quotes (escapes) the given string for use as a name or identifier in a query.
+     *
+     * @param string $name Unquoted identifier.
+     *
+     * @return string Quoted identifier.
+     *
+     * @throws \Error If the connection to the database has been closed.
+     */
+    public function quoteName(string $name): string;
+
+    /**
+     * Escapes a binary string to be used as BYTEA data.
+     */
+    public function escapeByteA(string $data): string;
 }
diff --git a/src/PostgresQuoter.php b/src/PostgresQuoter.php
deleted file mode 100644
index 3e4d149..0000000
--- a/src/PostgresQuoter.php
+++ /dev/null
@@ -1,34 +0,0 @@
-<?php declare(strict_types=1);
-
-namespace Amp\Postgres;
-
-interface PostgresQuoter
-{
-    /**
-     * Quotes (escapes) the given string for use as a string literal or identifier in a query. This method wraps the
-     * string in single quotes, so additional quotes should not be added in the query.
-     *
-     * @param string $data Unquoted data.
-     *
-     * @return string Quoted string wrapped in single quotes.
-     *
-     * @throws \Error If the connection to the database has been closed.
-     */
-    public function quoteString(string $data): string;
-
-    /**
-     * Quotes (escapes) the given string for use as a name or identifier in a query.
-     *
-     * @param string $name Unquoted identifier.
-     *
-     * @return string Quoted identifier.
-     *
-     * @throws \Error If the connection to the database has been closed.
-     */
-    public function quoteName(string $name): string;
-
-    /**
-     * Escapes a binary string to be used as BYTEA data.
-     */
-    public function escapeByteA(string $data): string;
-}