diff --git a/changelog/unreleased/disable-pretty-log.md b/changelog/unreleased/disable-pretty-log.md
new file mode 100644
index 00000000000..11c99928798
--- /dev/null
+++ b/changelog/unreleased/disable-pretty-log.md
@@ -0,0 +1,7 @@
+Change: Disable pretty logging by default
+
+Tags: ocis
+
+Disable pretty logging default for performance reasons.
+
+https://github.com/owncloud/ocis/pull/1133
diff --git a/ocis/pkg/flagset/flagset.go b/ocis/pkg/flagset/flagset.go
index 422d61d9c04..8daa92c78dc 100644
--- a/ocis/pkg/flagset/flagset.go
+++ b/ocis/pkg/flagset/flagset.go
@@ -23,7 +23,7 @@ func RootWithConfig(cfg *config.Config) []cli.Flag {
 			Destination: &cfg.Log.Level,
 		},
 		&cli.BoolFlag{
-			Value:       true,
+			Value:       false,
 			Name:        "log-pretty",
 			Usage:       "Enable pretty logging",
 			EnvVars:     []string{"OCIS_LOG_PRETTY"},