diff --git a/libc/bionic/malloc_common_dynamic.h b/libc/bionic/malloc_common_dynamic.h
index 755af8f..048d42a 100644
--- a/libc/bionic/malloc_common_dynamic.h
+++ b/libc/bionic/malloc_common_dynamic.h
@@ -45,3 +45,6 @@
 // Lock for globals, to guarantee that only one thread is doing a mutate.
 extern pthread_mutex_t gGlobalsMutateLock;
 extern _Atomic bool gGlobalsMutating;
+
+// Function hooks instantiations, used by dispatch-table allocators to install themselves.
+void SetGlobalFunctions(void* functions[]);