diff --git a/tools/libclang/CIndexer.cpp b/tools/libclang/CIndexer.cpp
index d5131ff..cdf6c61 100644
--- a/tools/libclang/CIndexer.cpp
+++ b/tools/libclang/CIndexer.cpp
@@ -135,6 +135,7 @@
     OS.close();
     if (OS.has_error()) {
       SavedFile.eraseFromDisk();
+      OS.clear_error();
       return true;
     }