diff --git a/libc/bionic/ndk_cruft.cpp b/libc/bionic/ndk_cruft.cpp
index 15a3206..4834d6e 100644
--- a/libc/bionic/ndk_cruft.cpp
+++ b/libc/bionic/ndk_cruft.cpp
@@ -250,4 +250,9 @@
   return 0;
 }
 
+// This was removed from POSIX 2004.
+extern "C" pid_t wait3(int* status, int options, struct rusage* rusage) {
+  return wait4(-1, status, options, rusage);
+}
+
 #endif