diff --git a/libs/hwui/renderthread/RenderThread.cpp b/libs/hwui/renderthread/RenderThread.cpp
index 72a428f..bd34eb8 100644
--- a/libs/hwui/renderthread/RenderThread.cpp
+++ b/libs/hwui/renderthread/RenderThread.cpp
@@ -236,10 +236,8 @@
             break;
     }
 
-    FILE *file = fdopen(fd, "a");
-    fprintf(file, "\n%s\n", cachesOutput.string());
-    fprintf(file, "\nPipeline=%s\n", pipeline.string());
-    fflush(file);
+    dprintf(fd, "\n%s\n", cachesOutput.string());
+    dprintf(fd, "\nPipeline=%s\n", pipeline.string());
 }
 
 Readback& RenderThread::readback() {