diff --git a/services/surfaceflinger/common/FlagManager.cpp b/services/surfaceflinger/common/FlagManager.cpp
index 57b170f..b78809a 100644
--- a/services/surfaceflinger/common/FlagManager.cpp
+++ b/services/surfaceflinger/common/FlagManager.cpp
@@ -148,6 +148,7 @@
     DUMP_READ_ONLY_FLAG(commit_not_composited);
     DUMP_READ_ONLY_FLAG(local_tonemap_screenshots);
     DUMP_READ_ONLY_FLAG(override_trusted_overlay);
+    DUMP_READ_ONLY_FLAG(flush_buffer_slots_to_uncache);
 
 #undef DUMP_READ_ONLY_FLAG
 #undef DUMP_SERVER_FLAG
@@ -246,6 +247,7 @@
 FLAG_MANAGER_READ_ONLY_FLAG(commit_not_composited, "");
 FLAG_MANAGER_READ_ONLY_FLAG(local_tonemap_screenshots, "debug.sf.local_tonemap_screenshots");
 FLAG_MANAGER_READ_ONLY_FLAG(override_trusted_overlay, "");
+FLAG_MANAGER_READ_ONLY_FLAG(flush_buffer_slots_to_uncache, "");
 
 /// Trunk stable server flags ///
 FLAG_MANAGER_SERVER_FLAG(refresh_rate_overlay_on_external_display, "")
diff --git a/services/surfaceflinger/common/include/common/FlagManager.h b/services/surfaceflinger/common/include/common/FlagManager.h
index 9517ff7..302d311 100644
--- a/services/surfaceflinger/common/include/common/FlagManager.h
+++ b/services/surfaceflinger/common/include/common/FlagManager.h
@@ -87,6 +87,7 @@
     bool commit_not_composited() const;
     bool local_tonemap_screenshots() const;
     bool override_trusted_overlay() const;
+    bool flush_buffer_slots_to_uncache() const;
 
 protected:
     // overridden for unit tests