diff --git a/include/llmr/style/style_bucket.hpp b/include/llmr/style/style_bucket.hpp
index f6c946ac0..bd6dcf714 100644
--- a/include/llmr/style/style_bucket.hpp
+++ b/include/llmr/style/style_bucket.hpp
@@ -6,6 +6,8 @@
 #include <llmr/util/vec.hpp>
 #include <llmr/util/variant.hpp>
 
+#include <memory>
+
 namespace llmr {
 
 class Source;