diff --git a/libc/bionic/pthread_atfork.cpp b/libc/bionic/pthread_atfork.cpp
index 82e2b59..d1c4ad0 100644
--- a/libc/bionic/pthread_atfork.cpp
+++ b/libc/bionic/pthread_atfork.cpp
@@ -44,7 +44,7 @@
   atfork_t* last;
 };
 
-static pthread_mutex_t g_atfork_list_mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER;
+static pthread_mutex_t g_atfork_list_mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
 static atfork_list_t g_atfork_list = { NULL, NULL };
 
 void __bionic_atfork_run_prepare() {
@@ -73,7 +73,7 @@
     }
   }
 
-  g_atfork_list_mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER;
+  g_atfork_list_mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
 }
 
 void __bionic_atfork_run_parent() {
diff --git a/libc/include/pthread.h b/libc/include/pthread.h
index 24dba1b..2178789 100644
--- a/libc/include/pthread.h
+++ b/libc/include/pthread.h
@@ -53,9 +53,13 @@
 #define  __PTHREAD_RECURSIVE_MUTEX_INIT_VALUE  0x4000
 #define  __PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE 0x8000
 
-#define  PTHREAD_MUTEX_INITIALIZER             {__PTHREAD_MUTEX_INIT_VALUE __RESERVED_INITIALIZER}
-#define  PTHREAD_RECURSIVE_MUTEX_INITIALIZER   {__PTHREAD_RECURSIVE_MUTEX_INIT_VALUE __RESERVED_INITIALIZER}
-#define  PTHREAD_ERRORCHECK_MUTEX_INITIALIZER  {__PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE __RESERVED_INITIALIZER}
+#define PTHREAD_MUTEX_INITIALIZER {__PTHREAD_MUTEX_INIT_VALUE __RESERVED_INITIALIZER}
+#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP {__PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE __RESERVED_INITIALIZER}
+#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP {__PTHREAD_RECURSIVE_MUTEX_INIT_VALUE __RESERVED_INITIALIZER}
+
+/* TODO: remove this namespace pollution. */
+#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP
+#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
 
 enum {
     PTHREAD_MUTEX_NORMAL = 0,