diff --git a/libc/bionic/libc_init_static.cpp b/libc/bionic/libc_init_static.cpp
index 8fbc20e..514423d 100644
--- a/libc/bionic/libc_init_static.cpp
+++ b/libc/bionic/libc_init_static.cpp
@@ -92,19 +92,22 @@
   size_t phdr_ct = getauxval(AT_PHNUM);
 
   static TlsModule mod;
+  TlsModules& modules = __libc_shared_globals()->tls_modules;
   if (__bionic_get_tls_segment(phdr_start, phdr_ct, 0, &mod.segment)) {
     if (!__bionic_check_tls_alignment(&mod.segment.alignment)) {
       async_safe_fatal("error: TLS segment alignment in \"%s\" is not a power of 2: %zu\n",
                        progname, mod.segment.alignment);
     }
     mod.static_offset = layout.reserve_exe_segment_and_tcb(&mod.segment, progname);
-    mod.first_generation = 1;
-    __libc_shared_globals()->tls_modules.generation = 1;
-    __libc_shared_globals()->tls_modules.module_count = 1;
-    __libc_shared_globals()->tls_modules.module_table = &mod;
+    mod.first_generation = kTlsGenerationFirst;
+
+    modules.module_count = 1;
+    modules.module_table = &mod;
   } else {
     layout.reserve_exe_segment_and_tcb(nullptr, progname);
   }
+  // Enable the fast path in __tls_get_addr.
+  __libc_tls_generation_copy = modules.generation;
 
   layout.finish_layout();
 }