diff --git a/mozglue/baseprofiler/public/BaseProfilerMarkersPrerequisites.h b/mozglue/baseprofiler/public/BaseProfilerMarkersPrerequisites.h
index 32a379bd867b..f6625e2f94ec 100644
--- a/mozglue/baseprofiler/public/BaseProfilerMarkersPrerequisites.h
+++ b/mozglue/baseprofiler/public/BaseProfilerMarkersPrerequisites.h
@@ -1030,6 +1030,14 @@ inline void StreamPayload<ProfilerString8View>(
     const ProfilerString8View& aPayload) {
   aWriter.StringProperty(aKey, aPayload);
 }
+
+template <>
+inline void StreamPayload<Flow>(baseprofiler::SpliceableJSONWriter& aWriter,
+                                const Span<const char> aKey,
+                                const Flow& aPayload) {
+  aWriter.FlowProperty(aKey, aPayload);
+}
+
 }  // namespace detail
 
 // This helper class is used by MarkerTypes that want to support the general