diff --git a/packages/astro/src/core/client-directive/utils.ts b/packages/astro/src/core/client-directive/utils.ts
index 4efccb9a2e..9c4a6c8ae4 100644
--- a/packages/astro/src/core/client-directive/utils.ts
+++ b/packages/astro/src/core/client-directive/utils.ts
@@ -37,7 +37,7 @@ export function normalizeClientParamsDirective(value: any) {
 		);
 	}
 	return {
-		directive: `client:${maybeDirectiveOptions.directive}`,
+		directive: maybeDirectiveOptions.directive,
 		value: maybeDirectiveOptions.value,
 	};
 }