diff --git a/ntcore/src/main/native/include/networktables/StructArrayTopic.h b/ntcore/src/main/native/include/networktables/StructArrayTopic.h
index 667570bd7e..c4f0083688 100644
--- a/ntcore/src/main/native/include/networktables/StructArrayTopic.h
+++ b/ntcore/src/main/native/include/networktables/StructArrayTopic.h
@@ -312,6 +312,9 @@ class StructArrayPublisher : public Publisher {
   void Set(std::span<const T> value, int64_t time = 0) {
     std::apply(
         [&](const I&... info) {
+          if (!m_schemaPublished.exchange(true, std::memory_order_relaxed)) {
+            GetTopic().GetInstance().template AddStructSchema<T>(info...);
+          }
           m_buf.Write(
               value,
               [&](auto bytes) { ::nt::SetRaw(m_pubHandle, bytes, time); },
@@ -356,6 +359,9 @@ class StructArrayPublisher : public Publisher {
   void SetDefault(std::span<const T> value) {
     std::apply(
         [&](const I&... info) {
+          if (!m_schemaPublished.exchange(true, std::memory_order_relaxed)) {
+            GetTopic().GetInstance().template AddStructSchema<T>(info...);
+          }
           m_buf.Write(
               value,
               [&](auto bytes) { ::nt::SetDefaultRaw(m_pubHandle, bytes); },