diff --git a/core/java/com/android/internal/protolog/BaseProtoLogImpl.java b/core/java/com/android/internal/protolog/BaseProtoLogImpl.java
index cd55d32922174..f2b0544bcfad0 100644
--- a/core/java/com/android/internal/protolog/BaseProtoLogImpl.java
+++ b/core/java/com/android/internal/protolog/BaseProtoLogImpl.java
@@ -259,6 +259,7 @@ 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.");