diff --git a/libc/bionic/pthread_create.cpp b/libc/bionic/pthread_create.cpp
index 194db18..5bd4f16 100644
--- a/libc/bionic/pthread_create.cpp
+++ b/libc/bionic/pthread_create.cpp
@@ -91,7 +91,7 @@
   // Create and set an alternate signal stack.
   int prot = PROT_READ | PROT_WRITE;
 #ifdef __aarch64__
-  if (atomic_load(&__libc_globals->memtag_stack)) {
+  if (atomic_load(&__libc_memtag_stack)) {
     prot |= PROT_MTE;
   }
 #endif
@@ -237,7 +237,7 @@
   int prot = PROT_READ | PROT_WRITE;
   const char* prot_str = "R+W";
 #ifdef __aarch64__
-  if (atomic_load(&__libc_globals->memtag_stack)) {
+  if (atomic_load(&__libc_memtag_stack)) {
     prot |= PROT_MTE;
     prot_str = "R+W+MTE";
   }