diff --git a/libc/private/bionic_mbstate.h b/libc/private/bionic_mbstate.h
index 29f5aa6..0e5f861 100644
--- a/libc/private/bionic_mbstate.h
+++ b/libc/private/bionic_mbstate.h
@@ -57,14 +57,18 @@
   return ps->__seq[n];
 }
 
+static inline void mbstate_reset(mbstate_t* ps) {
+  *(reinterpret_cast<uint32_t*>(ps->__seq)) = 0;
+}
+
 static inline __wur size_t mbstate_reset_and_return_illegal(int _errno, mbstate_t* ps) {
   errno = _errno;
-  *(reinterpret_cast<uint32_t*>(ps->__seq)) = 0;
+  mbstate_reset(ps);
   return BIONIC_MULTIBYTE_RESULT_ILLEGAL_SEQUENCE;
 }
 
 static inline __wur size_t mbstate_reset_and_return(size_t _return, mbstate_t* ps) {
-  *(reinterpret_cast<uint32_t*>(ps->__seq)) = 0;
+  mbstate_reset(ps);
   return _return;
 }