diff --git a/tests/StreamTest.cpp b/tests/StreamTest.cpp
index 00c079a..cf82843 100644
--- a/tests/StreamTest.cpp
+++ b/tests/StreamTest.cpp
@@ -44,7 +44,7 @@
         if (!writer.isValid()) {
             SkString msg;
             msg.printf("Failed to create tmp file %s\n", path.c_str());
-            reporter->reportFailed(msg.c_str());
+            reporter->reportFailed(msg);
             return;
         }