diff --git a/libc/bionic/jemalloc.h b/libc/bionic/jemalloc.h
index 3fd36e4..b9a4e99 100644
--- a/libc/bionic/jemalloc.h
+++ b/libc/bionic/jemalloc.h
@@ -34,6 +34,7 @@
 struct mallinfo je_mallinfo();
 void je_malloc_disable();
 void je_malloc_enable();
+int je_malloc_info(int options, FILE* fp);
 int je_mallopt(int, int);
 void* je_memalign_round_up_boundary(size_t, size_t);
 void* je_pvalloc(size_t);