diff --git a/internal/acl/config.go b/internal/acl/config.go
index aff37289..d25ba8d6 100644
--- a/internal/acl/config.go
+++ b/internal/acl/config.go
@@ -26,9 +26,9 @@ type Config struct {
 	Log        *accesslog.ACLLoggerConfig `json:"log"`
 
 	Notify struct {
-		To             []string      `json:"to"`              // list of notification providers
-		Interval       time.Duration `json:"interval"`        // interval between notifications
-		IncludeAllowed *bool         `json:"include_allowed"` // default: false
+		To             []string      `json:"to,omitempty"`             // list of notification providers
+		Interval       time.Duration `json:"interval,omitempty"`       // interval between notifications
+		IncludeAllowed *bool         `json:"include_allowed,omitzero"` // default: false
 	} `json:"notify"`
 
 	config
diff --git a/internal/logging/accesslog/config.go b/internal/logging/accesslog/config.go
index f27a51e0..1200ba2f 100644
--- a/internal/logging/accesslog/config.go
+++ b/internal/logging/accesslog/config.go
@@ -10,7 +10,7 @@ import (
 
 type (
 	ConfigBase struct {
-		Path           string        `json:"path"`
+		Path           string        `json:"path,omitempty"`
 		Stdout         bool          `json:"stdout"`
 		Retention      *Retention    `json:"retention" aliases:"keep"`
 		RotateInterval time.Duration `json:"rotate_interval,omitempty" swaggertype:"primitive,integer"`
diff --git a/internal/logging/accesslog/retention.go b/internal/logging/accesslog/retention.go
index 1658c021..a67cf953 100644
--- a/internal/logging/accesslog/retention.go
+++ b/internal/logging/accesslog/retention.go
@@ -9,9 +9,9 @@ import (
 )
 
 type Retention struct {
-	Days     uint64 `json:"days"`
-	Last     uint64 `json:"last"`
-	KeepSize uint64 `json:"keep_size"`
+	Days     uint64 `json:"days,omitempty"`
+	Last     uint64 `json:"last,omitempty"`
+	KeepSize uint64 `json:"keep_size,omitempty"`
 } // @name LogRetention
 
 var (