diff --git a/include/boost/histogram/accumulators/collector.hpp b/include/boost/histogram/accumulators/collector.hpp
index 06f0d30e..e01fa3c2 100644
--- a/include/boost/histogram/accumulators/collector.hpp
+++ b/include/boost/histogram/accumulators/collector.hpp
@@ -2,6 +2,7 @@
 #define BOOST_HISTOGRAM_ACCUMULATORS_COLLECTOR_HPP
 
 #include <algorithm> // for std::equal
+#include <boost/core/nvp.hpp>
 #include <boost/histogram/detail/detect.hpp>
 #include <boost/histogram/fwd.hpp> // for collector<>
 #include <initializer_list>
diff --git a/test/accumulators_serialization_test.cpp b/test/accumulators_serialization_test.cpp
index b09132a8..bc9d015e 100644
--- a/test/accumulators_serialization_test.cpp
+++ b/test/accumulators_serialization_test.cpp
@@ -102,5 +102,19 @@ int main(int argc, char** argv) {
     BOOST_TEST(a == b);
   }
 
+  // collector
+  {
+    const auto filename = join(argv[1], "accumulators_serialization_test_collector.xml");
+    accumulators::collector<> a;
+    a(1.5);
+    a(4.0);
+    print_xml(filename, a);
+
+    accumulators::collector<> b;
+    BOOST_TEST_NOT(a == b);
+    load_xml(filename, b);
+    BOOST_TEST(a == b);
+  }
+
   return boost::report_errors();
 }