diff --git a/source/extensions/filters/http/kill_request/kill_request_filter.cc b/source/extensions/filters/http/kill_request/kill_request_filter.cc
index 7cf10a23bc1b2..b278fabe235ca 100644
--- a/source/extensions/filters/http/kill_request/kill_request_filter.cc
+++ b/source/extensions/filters/http/kill_request/kill_request_filter.cc
@@ -61,8 +61,9 @@ Http::FilterHeadersStatus KillRequestFilter::decodeHeaders(Http::RequestHeaderMa
 
     if (per_route_kill_settings) {
       is_correct_direction = per_route_kill_settings->getDirection() == KillRequest::REQUEST;
-      envoy::type::v3::FractionalPercent probability = per_route_kill_settings->getProbability();
-      kill_request_.set_allocated_probability(&probability);
+      // Allocate the probability into kill_request in case the lifetime of
+      // per_route_kill_settings does not match that of kill_request_
+      kill_request_.mutable_probability()->CopyFrom(per_route_kill_settings->getProbability());
     }
   }
 
diff --git a/test/extensions/filters/http/kill_request/kill_request_filter_test.cc b/test/extensions/filters/http/kill_request/kill_request_filter_test.cc
index 581bfa0d34864..2b9483bdc0256 100644
--- a/test/extensions/filters/http/kill_request/kill_request_filter_test.cc
+++ b/test/extensions/filters/http/kill_request/kill_request_filter_test.cc
@@ -209,6 +209,24 @@ TEST_F(KillRequestFilterTest, KillsBasedOnDirection) {
                "KillRequestFilter is crashing Envoy!!!");
 }
 
+TEST_F(KillRequestFilterTest, PerRouteKillSettingFound) {
+  envoy::extensions::filters::http::kill_request::v3::KillRequest kill_request;
+  setUpTest(kill_request);
+  request_headers_.addCopy("x-envoy-kill-request", "true");
+
+  envoy::extensions::filters::http::kill_request::v3::KillRequest route_level_kill_request;
+  // Set probability to zero to make isKillRequestEnabled return false
+  route_level_kill_request.mutable_probability()->set_numerator(0);
+  route_level_kill_request.set_kill_request_header("x-custom-kill-request");
+
+  // Return valid kill setting on the REQUEST direction
+  const KillSettings kill_settings(route_level_kill_request);
+  ON_CALL(decoder_filter_callbacks_.route_->route_entry_,
+          perFilterConfig(Extensions::HttpFilters::HttpFilterNames::get().KillRequest))
+      .WillByDefault(Return(&kill_settings));
+  ASSERT_EQ(filter_->decodeHeaders(request_headers_, false), Http::FilterHeadersStatus::Continue);
+}
+
 } // namespace
 } // namespace KillRequest
 } // namespace HttpFilters