diff --git a/wp-admin/includes/file.php b/wp-admin/includes/file.php
index 182f1d9d00..7b83ca5539 100644
--- a/wp-admin/includes/file.php
+++ b/wp-admin/includes/file.php
@@ -622,9 +622,11 @@ 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 );
-	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' ) );
+	if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
+		$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' ) );
+	}
 
 	$needed_dirs = array_unique($needed_dirs);
 	foreach ( $needed_dirs as $dir ) {
@@ -722,9 +724,11 @@ function _unzip_file_pclzip($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 );
-	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' ) );
+	if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
+		$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' ) );
+	}
 
 	$needed_dirs = array_unique($needed_dirs);
 	foreach ( $needed_dirs as $dir ) {