diff --git a/libc/bionic/ndk_cruft.cpp b/libc/bionic/ndk_cruft.cpp
index 016b476..dbacf18 100644
--- a/libc/bionic/ndk_cruft.cpp
+++ b/libc/bionic/ndk_cruft.cpp
@@ -52,6 +52,9 @@
 // LP64 doesn't need to support any legacy cruft.
 #if !defined(__LP64__)
 
+// By the time any NDK-built code is running, there are plenty of threads.
+int __isthreaded = 1;
+
 // These were accidentally declared in <unistd.h> because we stupidly used to inline
 // getpagesize() and __getpageshift(). Needed for backwards compatibility with old NDK apps.
 unsigned int __page_size = PAGE_SIZE;
diff --git a/libc/bionic/pthread_create.cpp b/libc/bionic/pthread_create.cpp
index 9f4481f..9197aa3 100644
--- a/libc/bionic/pthread_create.cpp
+++ b/libc/bionic/pthread_create.cpp
@@ -49,8 +49,6 @@
 void __init_user_desc(struct user_desc*, bool, void*);
 #endif
 
-extern "C" int __isthreaded;
-
 // This code is used both by each new pthread and the code that initializes the main thread.
 void __init_tls(pthread_internal_t* thread) {
   // Slot 0 must point to itself. The x86 Linux kernel reads the TLS from %fs:0.
@@ -230,9 +228,6 @@
                    void* (*start_routine)(void*), void* arg) {
   ErrnoRestorer errno_restorer;
 
-  // Inform the rest of the C library that at least one thread was created.
-  __isthreaded = 1;
-
   pthread_attr_t thread_attr;
   if (attr == NULL) {
     pthread_attr_init(&thread_attr);