diff --git a/FuzzerInterceptors.cpp b/FuzzerInterceptors.cpp
index b877986..d5b0a42 100644
--- a/FuzzerInterceptors.cpp
+++ b/FuzzerInterceptors.cpp
@@ -25,6 +25,7 @@
   }
 
 #include <cassert>
+#include <cstddef> // for size_t
 #include <cstdint>
 #include <dlfcn.h> // for dlsym()