diff --git a/malloc/Versions b/malloc/Versions
index 98be892b48..bef99d31dc 100644
--- a/malloc/Versions
+++ b/malloc/Versions
@@ -55,4 +55,8 @@ libc {
     # p*
     posix_memalign;
   }
+  GLIBC_PRIVATE {
+    # Internal startup hook for libpthread.
+    __libc_malloc_pthread_startup;
+  }
 }