2 files changed, 2 insertions, 2 deletions
diff --git a/cpp/test/IceStorm/rep1/Sub.cpp b/cpp/test/IceStorm/rep1/Sub.cpp
index 2b6d468538b..38425012c00 100644
--- a/cpp/test/IceStorm/rep1/Sub.cpp
+++ b/cpp/test/IceStorm/rep1/Sub.cpp
@@ -49,7 +49,7 @@ Sub::run(int argc, char** argv)
     catch(const IceUtilInternal::BadOptException& e)
     {
         ostringstream os;
-        os << argv[0] << ": " << e.reason;
+        os << argv[0] << ": error: " << e.reason;
         throw invalid_argument(os.str());
     }
 
diff --git a/cpp/test/IceStorm/rep1/Subscriber.cpp b/cpp/test/IceStorm/rep1/Subscriber.cpp
index c97b122b5a3..22bd2ad7397 100644
--- a/cpp/test/IceStorm/rep1/Subscriber.cpp
+++ b/cpp/test/IceStorm/rep1/Subscriber.cpp
@@ -95,7 +95,7 @@ Subscriber::run(int argc, char** argv)
     catch(const IceUtilInternal::BadOptException& e)
     {
         ostringstream os;
-        os << argv[0] << ": " << e.reason;
+        os << argv[0] << ": error: " << e.reason;
         throw invalid_argument(os.str());
     }