diff --git a/src/tim/transform/permute_vector.h b/src/tim/transform/permute_vector.h
index 4fd3bd4..8d8124e 100644
--- a/src/tim/transform/permute_vector.h
+++ b/src/tim/transform/permute_vector.h
@@ -26,6 +26,7 @@
 
 #include <array>
 #include <cassert>
+#include <cstdint>
 #include <memory>
 #include <vector>
 #include <string>