diff --git a/core/java/com/android/internal/protolog/BaseProtoLogImpl.java b/core/java/com/android/internal/protolog/BaseProtoLogImpl.java
index 83309fc610095..4d1234f9006a7 100644
--- a/core/java/com/android/internal/protolog/BaseProtoLogImpl.java
+++ b/core/java/com/android/internal/protolog/BaseProtoLogImpl.java
@@ -255,6 +255,7 @@ public class BaseProtoLogImpl {
             if (writeToFile) {
                 writeProtoLogToFileLocked();
                 logAndPrintln(pw, "Log written to " + mLogFile + ".");
+                mBuffer.resetBuffer();
             }
             if (mProtoLogEnabled) {
                 logAndPrintln(pw, "ERROR: logging was re-enabled while waiting for flush.");