diff --git a/src/runtime/internal/transitions.ts b/src/runtime/internal/transitions.ts
index f7b6b6d86a..c3196e35e3 100644
--- a/src/runtime/internal/transitions.ts
+++ b/src/runtime/internal/transitions.ts
@@ -143,7 +143,8 @@ export function create_in_transition(node: Element & ElementCSSInlineStyle, fn:
 	return {
 		start() {
 			if (started) return;
-
+			
+			started = true;
 			delete_rule(node);
 
 			if (is_function(config)) {