diff --git a/src/wp-admin/setup-config.php b/src/wp-admin/setup-config.php
index a7f0e96d46..ccbab40463 100644
--- a/src/wp-admin/setup-config.php
+++ b/src/wp-admin/setup-config.php
@@ -347,8 +347,8 @@ switch ( $step ) {
 
 		$key = 0;
 		foreach ( $config_file as $line_num => $line ) {
-			if ( '$table_prefix  =' == substr( $line, 0, 16 ) ) {
-				$config_file[ $line_num ] = '$table_prefix  = \'' . addcslashes( $prefix, "\\'" ) . "';\r\n";
+			if ( '$table_prefix =' == substr( $line, 0, 16 ) ) {
+				$config_file[ $line_num ] = '$table_prefix = \'' . addcslashes( $prefix, "\\'" ) . "';\r\n";
 				continue;
 			}