diff --git a/libc/src/stdio.cpp b/libc/src/stdio.cpp
index b3a066f6..b19f62da 100644
--- a/libc/src/stdio.cpp
+++ b/libc/src/stdio.cpp
@@ -273,13 +273,20 @@ extern "C"
 
         if ((flags = fopen_parse_mode(mode)) < 0) return nullptr;
 
-        close(stream->_fd);
+        fflush(stream);
 
-        s_open_files[stream->_fd] = nullptr;
+        if (!path)
+        {
+            // FIXME: No mode changes are permitted.
+            errno = EBADF;
+            return nullptr;
+        }
 
         if (stream->_buf.buffer && (stream->_buf.status & FileStatusFlags::BufferIsMalloced)) free(stream->_buf.buffer);
 
-        if (!path) { fail("FIXME: freopen() called with path=nullptr"); }
+        close(stream->_fd);
+
+        s_open_files[stream->_fd] = nullptr;
 
         int fd = open(path, flags, 0666);
         if (fd < 0) { return nullptr; }