diff --git a/src/transaction.cpp b/src/transaction.cpp
index b93b35c..7be5e35 100644
--- a/src/transaction.cpp
+++ b/src/transaction.cpp
@@ -1618,6 +1618,7 @@ int wsrep::transaction::certify_fragment(
         assert(state_ == s_certifying);
         state(lock, s_executing);
         flags(flags() & ~wsrep::provider::flag::start_transaction);
+        flags(flags() & ~wsrep::provider::flag::pa_unsafe);
     }
     return ret;
 }