diff --git a/src/binary/mach-o.cpp b/src/binary/mach-o.cpp
index fdf73a5..2d1cdd3 100644
--- a/src/binary/mach-o.cpp
+++ b/src/binary/mach-o.cpp
@@ -11,6 +11,7 @@
 
 #include <cstdio>
 #include <cstring>
+#include <mutex>
 #include <string>
 #include <type_traits>
 #include <unordered_map>