diff --git a/include/avnd/binding/pd/inputs.hpp b/include/avnd/binding/pd/inputs.hpp
index 8f66fc3b..2d4f1d14 100644
--- a/include/avnd/binding/pd/inputs.hpp
+++ b/include/avnd/binding/pd/inputs.hpp
@@ -10,6 +10,7 @@
 #endif
 
 #include <cstring>
+#include <mutex>
 namespace pd
 {