diff --git a/src/wp-admin/includes/file.php b/src/wp-admin/includes/file.php
index 3f0455caea..182f1d9d00 100644
--- a/src/wp-admin/includes/file.php
+++ b/src/wp-admin/includes/file.php
@@ -622,7 +622,7 @@ function _unzip_file_ziparchive($file, $to, $needed_dirs = array() ) {
 	 * A disk that has zero free bytes has bigger problems.
 	 * Require we have enough space to unzip the file and copy its contents, with a 10% buffer.
 	 */
-	$available_space = disk_free_space( WP_CONTENT_DIR );
+	$available_space = @disk_free_space( WP_CONTENT_DIR );
 	if ( $available_space && ( $uncompressed_size * 2.1 ) > $available_space )
 		return new WP_Error( 'disk_full_unzip_file', __( 'Could not copy files. You may have run out of disk space.' ), compact( 'uncompressed_size', 'available_space' ) );
 
@@ -722,7 +722,7 @@ function _unzip_file_pclzip($file, $to, $needed_dirs = array()) {
 	 * A disk that has zero free bytes has bigger problems.
 	 * Require we have enough space to unzip the file and copy its contents, with a 10% buffer.
 	 */
-	$available_space = disk_free_space( WP_CONTENT_DIR );
+	$available_space = @disk_free_space( WP_CONTENT_DIR );
 	if ( $available_space && ( $uncompressed_size * 2.1 ) > $available_space )
 		return new WP_Error( 'disk_full_unzip_file', __( 'Could not copy files. You may have run out of disk space.' ), compact( 'uncompressed_size', 'available_space' ) );
 
diff --git a/src/wp-admin/includes/update-core.php b/src/wp-admin/includes/update-core.php
index 267d8ee157..6acd54c2b0 100644
--- a/src/wp-admin/includes/update-core.php
+++ b/src/wp-admin/includes/update-core.php
@@ -773,7 +773,7 @@ function update_core($from, $to) {
 
 		// If we don't have enough free space, it isn't worth trying again.
 		// Unlikely to be hit due to the check in unzip_file().
-		$available_space = disk_free_space( ABSPATH );
+		$available_space = @disk_free_space( ABSPATH );
 		if ( $available_space && $total_size >= $available_space ) {
 			$result = new WP_Error( 'disk_full', __( 'There is not enough free disk space to complete the update.' ) );
 		} else {