diff --git a/llvm/tools/llvm-readobj/llvm-readobj.cpp b/llvm/tools/llvm-readobj/llvm-readobj.cpp
index 31e8bbe..f00d94e 100644
--- a/llvm/tools/llvm-readobj/llvm-readobj.cpp
+++ b/llvm/tools/llvm-readobj/llvm-readobj.cpp
@@ -377,6 +377,7 @@
 }
 
 void reportWarning(Twine Msg) {
+  fouts().flush();
   errs() << "\n";
   WithColor::warning(errs()) << Msg << "\n";
 }