diff --git a/libc/stdio/_stdio.h b/libc/stdio/_stdio.h
index 85464fa..4512622 100644
--- a/libc/stdio/_stdio.h
+++ b/libc/stdio/_stdio.h
@@ -22,9 +22,20 @@
 #ifdef __UCLIBC_HAS_WCHAR__
 #include <wchar.h>
 #endif
+#ifdef __UCLIBC_HAS_THREADS__
+#include "pthreadP.h"
+#endif

 #include <bits/uClibc_mutex.h>

+#ifdef __UCLIBC_HAS_THREADS__
+       #define DISABLE_CANCELLABILITY(oldstate) __pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &(oldstate))
+       #define RESTORE_CANCELLABILITY(oldstate) __pthread_setcancelstate(oldstate, NULL)
+#else
+       #define DISABLE_CANCELLABILITY(oldstate) ((void)0)
+       #define RESTORE_CANCELLABILITY(oldstate) ((void)0)
+#endif
+
 #define __STDIO_THREADLOCK_OPENLIST_ADD                        \
         __UCLIBC_IO_MUTEX_LOCK(_stdio_openlist_add_lock)

@@ -149,9 +160,16 @@ static inline ssize_t __READ(FILE *stream, char *buf, size_t bufsize)

 static inline ssize_t __WRITE(FILE *stream, const char *buf, size_t bufsize)
 {
+       ssize_t ret;
+#ifdef __UCLIBC_HAS_THREADS__
+       int oldstate;
+#endif
+       DISABLE_CANCELLABILITY(oldstate);
        __STDIO_STREAM_CUSTOM_WRITE_FUNC(stream, buf, bufsize);

-       return write(stream->__filedes, buf, bufsize);
+       ret = write(stream->__filedes, buf, bufsize);
+       RESTORE_CANCELLABILITY(oldstate);
+       return ret;
 }