diff --git a/checks/class-title-check.php b/checks/class-title-check.php
index 9f0c3515..03373101 100644
--- a/checks/class-title-check.php
+++ b/checks/class-title-check.php
@@ -54,7 +54,7 @@ public function check( $php_files, $css_files, $other_files ) {
 
 			// Look for <title> and </title> tags.
 			checkcount();
-			if ( ( false !== strpos( $file_content, '<title>' ) ) || ( false !== strpos( $file_content, '</title>' ) ) ) {
+			if ( ( is_string( $file_content ) && false !== strpos( $file_content, '<title>' ) ) || ( is_string( $file_content ) && false !== strpos( $file_content, '</title>' ) ) ) {
 				$filename      = tc_filename( $file_path );
 				$grep          = tc_grep( '<title>', $file_path );
 				$this->error[] = sprintf(