diff --git a/lib/utils/src/utils/containers/maybe_get_only.cc b/lib/utils/src/utils/containers/maybe_get_only.cc
index e1460dea66..7799a1f850 100644
--- a/lib/utils/src/utils/containers/maybe_get_only.cc
+++ b/lib/utils/src/utils/containers/maybe_get_only.cc
@@ -1 +1,10 @@
 #include "utils/containers/maybe_get_only.h"
+#include "utils/archetypes/value_type.h"
+#include <vector>
+
+namespace FlexFlow {
+
+template std::optional<value_type<0>>
+    maybe_get_only(std::vector<value_type<0>> const &);
+
+} // namespace FlexFlow