diff --git a/packages/block-library/src/site-tagline/block.json b/packages/block-library/src/site-tagline/block.json
index 3a6b1d31c8ac3..3f93904d297d4 100644
--- a/packages/block-library/src/site-tagline/block.json
+++ b/packages/block-library/src/site-tagline/block.json
@@ -12,6 +12,7 @@
 		}
 	},
 	"supports": {
+		"align": [ "wide", "full" ],
 		"html": false,
 		"color": {
 			"gradients": true