diff --git a/include/llmr/util/raster.hpp b/include/llmr/util/raster.hpp
index 9432e8cf6..afb37b30b 100644
--- a/include/llmr/util/raster.hpp
+++ b/include/llmr/util/raster.hpp
@@ -6,6 +6,7 @@
 
 #include <string>
 #include <mutex>
+#include <memory>
 
 namespace llmr {