diff --git a/internal/home/config.go b/internal/home/config.go
index c010a414..5242dbc6 100644
--- a/internal/home/config.go
+++ b/internal/home/config.go
@@ -163,11 +163,11 @@ type configuration struct {
 	// [configmigrate.LastSchemaVersion].
 	SchemaVersion uint `yaml:"schema_version"`
 
-	// UnsafeCustomUpdateIndexURL is the URL to the custom update index.
+	// UnsafeUseCustomUpdateIndexURL is the URL to the custom update index.
 	//
 	// NOTE: It's only exists for testing purposes and should not be used in
 	// release.
-	UnsafeCustomUpdateIndexURL bool `yaml:"unsafe_custom_update_index_url,omitempty"`
+	UnsafeUseCustomUpdateIndexURL bool `yaml:"unsafe_use_custom_update_index_url,omitempty"`
 }
 
 // httpConfig is a block with HTTP configuration params.
diff --git a/internal/home/home.go b/internal/home/home.go
index 320fb9e1..858e3826 100644
--- a/internal/home/home.go
+++ b/internal/home/home.go
@@ -717,7 +717,7 @@ func newUpdater(
 	case version.Channel() == version.ChannelRelease:
 		// Only enable custom update URL for development builds.
 		l.DebugContext(ctx, "custom update URL is disabled for release builds")
-	case !config.UnsafeCustomUpdateIndexURL:
+	case !config.UnsafeUseCustomUpdateIndexURL:
 		// Go on and use the default URL.
 		l.DebugContext(ctx, "custom update URL is disabled", "env", customURLStr)
 	case customURLStr != "":