diff --git a/.changeset/eleven-bugs-fail.md b/.changeset/eleven-bugs-fail.md
new file mode 100644
index 000000000000..e84a3a9eb4b4
--- /dev/null
+++ b/.changeset/eleven-bugs-fail.md
@@ -0,0 +1,6 @@
+---
+"create-svelte": patch
+"~TODO~": patch
+---
+
+[fix] provide valid value for `letter-spacing` CSS property
diff --git a/packages/create-svelte/templates/default/src/lib/header/Header.svelte b/packages/create-svelte/templates/default/src/lib/header/Header.svelte
index bab8050a0cb1..a6c484e49482 100644
--- a/packages/create-svelte/templates/default/src/lib/header/Header.svelte
+++ b/packages/create-svelte/templates/default/src/lib/header/Header.svelte
@@ -109,7 +109,7 @@
 		font-weight: 700;
 		font-size: 0.8rem;
 		text-transform: uppercase;
-		letter-spacing: 10%;
+		letter-spacing: 0.1em;
 		text-decoration: none;
 		transition: color 0.2s linear;
 	}