diff --git a/src/wp-admin/includes/post.php b/src/wp-admin/includes/post.php
index 51ce4c0cf7..c169bd7541 100644
--- a/src/wp-admin/includes/post.php
+++ b/src/wp-admin/includes/post.php
@@ -687,7 +687,7 @@ function post_exists($title, $content = '', $date = '') {
 	}
 
 	if ( !empty ( $content ) ) {
-		$query .= 'AND post_content = %s';
+		$query .= ' AND post_content = %s';
 		$args[] = $post_content;
 	}
 
diff --git a/tests/phpunit/tests/admin/includesPost.php b/tests/phpunit/tests/admin/includesPost.php
index 686cff6242..c9e92f06aa 100644
--- a/tests/phpunit/tests/admin/includesPost.php
+++ b/tests/phpunit/tests/admin/includesPost.php
@@ -481,6 +481,20 @@ class Tests_Admin_Includes_Post extends WP_UnitTestCase {
 		$this->assertSame( $p, post_exists( $title, $content ) );
 	}
 
+	/**
+	 * @ticket 35246
+	 */
+	public function test_post_exists_should_match_content_with_no_title() {
+		$title = '';
+		$content = 'Foo Bar Baz';
+		$p = self::factory()->post->create( array(
+			'post_title' => $title,
+			'post_content' => $content,
+		) );
+
+		$this->assertSame( $p, post_exists( $title, $content ) );
+	}
+
 	public function test_post_exists_should_not_match_when_nonempty_content_doesnt_match() {
 		$title = 'Foo Bar';
 		$content = 'Foo Bar Baz';