diff --git a/libs/libc/stdio/lib_clearerr.c b/libs/libc/stdio/lib_clearerr.c
index 20a69c8996..39e6b74da9 100644
--- a/libs/libc/stdio/lib_clearerr.c
+++ b/libs/libc/stdio/lib_clearerr.c
@@ -48,6 +48,6 @@
 
 void clearerr(FAR FILE *stream)
 {
-  stream->fs_flags = 0;
+  stream->fs_flags &= (__FS_FLAG_LBF | __FS_FLAG_UBF);
 }
 #endif /* CONFIG_FILE_STREAM */