diff --git a/benchmark_aux.h b/benchmark_aux.h
index fc612f4..6419263 100644
--- a/benchmark_aux.h
+++ b/benchmark_aux.h
@@ -44,6 +44,7 @@
 void dealloc_argv(int new_argc, char **new_argv);
 
 void *mmap_paddr(intptr_t paddr, uint64_t size);
+size_t get_library_load_offset(pid_t pid, const char *libname);
 
 /* get amount of cores */
 uint32_t get_cores(void);